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diff --git a/sourcecodes/create_tiers_gom.php b/sourcecodes/create_tiers_gom.php
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+<?php 
+
+///////This code will allow users to group variables in tier. getcombineDescription() function combined all data and take you to "tier_description_processing_gom.php" for preparation of ban and whitelist //////////
+
+include("header_new.inc");
+include("runtime_check.php");
+
+$keyval=$_GET["My_key"];
+
+$dir="./data/";
+
+
+
+$type_n=array();
+
+//Get number of tier data and key value for changes in number of tier
+
+if(isset($_POST["nm_tier"]))
+{
+   $type_n=explode("|",$_POST["nm_tier"]);
+}
+else if(isset($_POST["nm_parent"]))
+{
+   $type_n=explode("|",$_POST["nm_parent"]);
+}
+else if(isset($_POST["nm_k"]))
+{
+   $type_n=explode("|",$_POST["nm_k"]);
+}
+else if(isset($_POST["nm_thr"]))
+{
+    $type_n=explode("|",$_POST["nm_thr"]);
+}
+
+$parent_number=trim($type_n[0]);   
+$k_number=trim($type_n[1]);   
+$tier_number=trim($type_n[2]);   
+$structure_thr=trim($type_n[3]);   
+
+
+if($keyval=="")
+  $keyval=$type_n[4];
+
+if($parent_number=="")
+{
+   $parent_number=4;
+}
+
+if($k_number=="")
+{
+   $k_number=1;
+}
+
+if($tier_number=="")
+{
+  $tier_number=3;
+}
+if($structure_thr=="")
+{
+  $structure_thr=0.5;
+}
+
+
+
+$nf=$dir.$keyval."nnode.txt";
+$node=trim(file_get_contents("$nf"));
+$maxplist=$node-1;
+
+//print default number of parents
+$pfile=$dir.$keyval."parent.txt";
+$parentf=fopen($pfile,"w");
+fwrite($parentf,"$parent_number\n");
+
+//print default number of k for model averaging
+$kfile=$dir.$keyval."k.txt";
+$kf=fopen($kfile,"w");
+fwrite($kf,"$k_number\n");
+
+//print model averaging threshold
+$thrfile=$dir.$keyval."thr.txt";
+$kf=fopen($thrfile,"w");
+fwrite($kf,"$structure_thr\n");
+
+//////////////////Check execution time///////////////////////////////////////////////
+$runtime=exe_time($keyval,$parent_number,$k_number);
+
+//print("Runtime is $runtime");
+
+?>
+<!-- Site navigation menu -->
+<ul class="navbar2">
+  <li><p onClick="getcombineDescription(ntiers,'ban_from','ban_to','white_from','white_to','<?php print($keyval);?>')"><a href="javascript:void(0)" >Perform Bayesian network modeling</a></p>
+</ul>
+<ul class="navbar">
+  <li><a href="help.php#constraint_interface" target="_blank">How to use this page</a>
+  <li><a href="help.php" target="_blank">Help</a>
+  <li><a href="home.php">Home</a>
+
+</ul>
+
+<div id="outernew">
+<p><h3><?php 
+print("Estimated run time for the current parameters: $runtime seconds");
+?>
+<br><br></h3>
+</p>
+<br>
+<p><h3>1. Global structure learning settings:<br><br></h3>
+</p>
+<table align="center">
+<tr>
+<td align="left">
+Maximum number of parents for any node:
+</td>
+<td align="left"> 
+     <form method="post" action="create_tiers_gom.php" name="form">
+      <SELECT NAME="nm_parent"  onchange="form.submit();">
+      <?php if($node<=10) 
+            {
+               for($i=1;$i<$node;$i++)
+              {
+            ?>
+              <option value=<?php $combined=$i."|".$k_number."|".$tier_number."|".$structure_thr."|".$keyval; print($combined)?> <?php if($parent_number == $i) {print "selected";}?>><?php print($i)?></option>
+            <?php
+              }
+            }
+            else
+            {
+               for($i=1;$i<=9;$i++)
+               {
+   
+                ?>
+                 <option value=<?php $combined=$i."|".$k_number."|".$tier_number."|".$structure_thr."|".$keyval; print($combined)?> <?php if($parent_number == $i) {print "selected";}?>><?php print($i)?></option>
+               <?php
+               }
+               ?>
+              <option value=<?php $combined=$maxplist."|".$k_number."|".$tier_number."|".$structure_thr."|".$keyval; print($combined)?> <?php if($parent_number == $maxplist) {print "selected";}?>>All</option>
+           <?php
+
+            }
+            
+     ?>  
+ 
+      </SELECT>
+   </form>
+</td>
+</tr>
+<tr>
+<td align="left">
+Number of networks to include in model averaging:
+</td>
+<td align="left"> 
+     <form method="post" action="create_tiers_gom.php" name="form">
+      <SELECT NAME="nm_k"  onchange="form.submit();">
+           <option value=<?php $combined=$parent_number."|"."1"."|".$tier_number."|".$structure_thr."|".$keyval; print($combined)?> <?php if($k_number == 1) {print "selected";}?>><?php print("1")?></option>
+           <option value=<?php $combined=$parent_number."|"."10"."|".$tier_number."|".$structure_thr."|".$keyval; print($combined)?> <?php if($k_number == 10) {print "selected";}?>><?php print("10")?></option>
+          <option value=<?php $combined=$parent_number."|"."50"."|".$tier_number."|".$structure_thr."|".$keyval; print($combined)?> <?php if($k_number == 50) {print "selected";}?>><?php print("50")?></option>
+          <option value=<?php $combined=$parent_number."|"."100"."|".$tier_number."|".$structure_thr."|".$keyval; print($combined)?> <?php if($k_number == 100) {print "selected";}?>><?php print("100")?></option>
+          <option value=<?php $combined=$parent_number."|"."500"."|".$tier_number."|".$structure_thr."|".$keyval; print($combined)?> <?php if($k_number == 500) {print "selected";}?>><?php print("500")?></option>
+          <option value=<?php $combined=$parent_number."|"."1000"."|".$tier_number."|".$structure_thr."|".$keyval; print($combined)?> <?php if($k_number == 1000) {print "selected";}?>><?php print("1000")?></option>
+      </SELECT>
+   </form>
+</td>
+</tr>
+<tr>
+<td align="left">
+Model averaging edge selection threshold:
+</td>
+<td align="left"> 
+     <form method="post" action="create_tiers_gom.php" name="form">
+      <SELECT NAME="nm_thr"  onchange="form.submit();">
+     <option value=<?php $combined=$parent_number."|".$k_number."|".$tier_number."|"."0.5"."|".$keyval; print($combined)?> <?php if($structure_thr == 0.5) {print "selected";}?>>0.5</option>
+     <option value=<?php $combined=$parent_number."|".$k_number."|".$tier_number."|"."0.6"."|".$keyval; print($combined)?> <?php if($structure_thr == 0.6) {print "selected";}?>>0.6</option>
+     <option value=<?php $combined=$parent_number."|".$k_number."|".$tier_number."|"."0.7"."|".$keyval; print($combined)?> <?php if($structure_thr == 0.7) {print "selected";}?>>0.7</option>
+     <option value=<?php $combined=$parent_number."|".$k_number."|".$tier_number."|"."0.8"."|".$keyval; print($combined)?> <?php if($structure_thr == 0.8) {print "selected";}?>>0.8</option>
+     <option value=<?php $combined=$parent_number."|".$k_number."|".$tier_number."|"."0.9"."|".$keyval; print($combined)?> <?php if($structure_thr == 0.9) {print "selected";}?>>0.9</option>
+     <option value=<?php $combined=$parent_number."|".$k_number."|".$tier_number."|"."1.0"."|".$keyval; print($combined)?> <?php if($structure_thr == 1.0) {print "selected";}?>>1.0</option>
+    
+      </SELECT>
+   </form>
+</td>
+</tr>
+<tr>
+<td align="left">
+Number of tiers:
+</td>
+<td align="left"> 
+     <form method="post" action="create_tiers_gom.php" name="form">
+      <SELECT NAME="nm_tier"  onchange="form.submit();">
+      <?php for($i=2;$i<10;$i++)
+      {
+        ?>
+           <option value=<?php $combined=$parent_number."|".$k_number."|".$i."|".$structure_thr."|".$keyval; print($combined)?> <?php if($tier_number == $i) {print "selected";}?>><?php print($i)?></option>
+     <?php
+     }
+   
+     ?>  
+      </SELECT>
+   </form>
+</td>
+</tr>
+</table>
+</br>
+
+
+<?php
+
+
+if(isset($HTTP_POST_VARS["bantext"]))
+{
+   $ban_search=$HTTP_POST_VARS["searchkey"];
+}
+
+if(isset($HTTP_POST_VARS["whitetext"]))
+{
+   $white_search=$HTTP_POST_VARS["searchkey"];
+}
+
+?>
+
+<!DOCTYPE html> 
+<html> 
+<head> 
+<title>Drag and Drop test</title> 
+<style type="text/css"> 
+	#nodelist{
+		width:200px;
+		font-weight:bold;
+                border: 2px solid;
+		}
+        #tiers{
+                position:absolute;
+                left:215px;
+                white-space: nowrap; 
+                min-width: 3000px;
+                float:top;
+                }
+
+        #int_box1{
+                white-space: nowrap;
+                min-width: 10000px;
+                }
+        #int_box2{
+                white-space: nowrap;
+                min-width: 10000px;
+                }
+        #int_box3{
+                white-space: nowrap;
+                min-width: 10000px;
+                }
+        #int_box4{
+                white-space: nowrap;
+                min-width: 10000px;
+                }
+
+        #outer_tier_desc{
+                margin-top: 100px;
+                }
+
+        #outer_tier_desc1{
+                width:2000px;
+                margin-top: 20px;
+                }
+
+	#outer_box_lists{
+                margin-top: 100px;
+		}
+	#nodelist2{
+		width:200px;
+		font-weight:bold;
+                border: 2px solid;
+                float:left;
+		}
+	#ban_outer {
+                position:absolute;
+                left: 215px;
+                width:449px;
+		border: 2px solid;
+                background-color:#C0C0C0;
+		font-weight:bold;
+                margin-left:15px;
+	}
+        #ban_from {
+                width:200px;
+                border:2px solid;
+                margin-left:15px;
+        }
+        #ban_to {
+                width:200px;
+                border:2px solid;
+                margin-left:15px;
+        }
+	#white_outer {
+                position:absolute;
+                left:700px;
+                width:449px;
+		border: 2px solid;
+                background-color:#C0C0C0;
+		font-weight:bold;
+	}
+        #white_from {
+                width:200px;
+                border:2px solid;
+                margin-left:15px;
+        }
+        #white_to {
+                width:200px;
+                border:2px solid;
+                margin-left:15px;
+        }
+
+
+	.tier {
+		width:200px;
+		border: 2px solid;
+		font-weight:bold;
+                float:left;
+                background-color:#FFFFFF;
+                margin-left:5px;
+	        display: inline-block;
+	}
+	.int {
+		border: 2px solid;
+		font-weight:bold;
+                float:left;
+                background-color:#FFFFFF;
+                margin-left:0px;
+	        display: inline-block;
+	}
+	.int1 {
+		border: 2px solid;
+                background-color:#FFFFFF;
+	        clear: left;
+	        float:left;
+                margin-left:0px;
+	        display: inline-block;
+	}
+	.node1 {
+		width:150px;
+		height:30px;
+		float:left;	
+		margin-left:10px;
+		margin-top:10px;
+		border: 2px dashed;
+                background-color:#C0C0C0;
+	}
+	.node2 {
+		width:150px;
+		height:30px;
+		float:left;	
+		margin-left:10px;
+		margin-top:10px;
+		border: 2px dashed;
+                background-color:#EAE822;
+	}
+
+</style> 
+
+<script type="text/javascript">
+
+//There are three groups of functions here:
+//The first group is involved with dragging and dropping nodes
+// between different locations.
+//The second group is involved with creating the divs that are needed
+// based on the number of nodes and number of tiers and organizing
+// them on the webpage.
+//The third group determines which divs the nodes are located in
+// to group the nodes into tiers and make ban and white lists.
+
+
+//Drag and drop functions:
+function drag(drop_target, e) {
+		e.dataTransfer.setData('Text', drop_target.id);
+		}
+
+function drop(drop_target, e) {
+		var id = e.dataTransfer.getData('Text');
+		drop_target.appendChild(document.getElementById(id));
+		e.preventDefault();
+	        } 
+
+function dropCopy(ev) {
+           ev.stopPropagation();
+           ev.preventDefault();
+           var src = ev.dataTransfer.getData("Text");
+           var orig = document.getElementById(src);
+           var pid = orig.parentNode.id;
+           var target_id = ev.target.id;
+           //document.write(pid);
+           if (pid != target_id){
+                var origclone = orig.cloneNode(true);
+                var newid = src+"a";
+                origclone.setAttribute('id',newid);
+                document.getElementById(pid).appendChild(origclone);
+                ev.target.appendChild(orig);
+           }
+           else {
+                document.write(pid,target_id);
+           }
+           return false; 
+}
+
+
+
+
+function loadFunction(nnodes,ntiers) {
+             makeNodeList(nnodes,'nodelist','tr');
+             makeNodes(nnodes,'nodelist');
+             makeTiers(nnodes,ntiers);
+             makeNodes(nnodes,'nodelist2','bw');
+             makeTierDesc1(ntiers);
+             makeTierDesc2(ntiers);
+             makeTierDesc3(ntiers);
+             makeTierDesc4(ntiers);
+             makeBWLists(nnodes);
+}
+
+
+//Function to make the NodeList. It is similar to the above function.
+function makeNodeList(nnodes,nlist) {
+               var element1 = document.createElement('div');
+               var newheight = 45*nnodes + 40;
+               newheight = newheight+'px';                  
+               element1.setAttribute('id',nlist);
+               element1.setAttribute('ondrop','drop(this, event)');
+               element1.setAttribute('ondragenter','return false');
+               element1.setAttribute('ondragover','return false');
+               element1.style.height=(newheight);
+               element1.innerHTML = "Nodes<br>";
+               document.getElementById('tier_box').appendChild(element1);
+}
+
+
+//This is the function that makes the nodes. It is called when the
+// page loads. The nodes are placed in the "nodelist" div.
+//Will need to mofidy this function to pass it a list of the node
+// names. The inner html is what is used in the later functions
+// that make the tier list, banlist, and white list.
+function makeNodes(nnodes,nlist,suffix) {
+
+<?php $xyz=1;
+$nm=$dir."$keyval"."name.txt";
+
+$namelist=file_get_contents("$nm");
+$str_arrname=array();
+$str_arrname=explode("\n",$namelist);
+$dataname=array();
+$dataname=explode("\t",$str_arrname[0]);
+             for ($i=1;$i<=$node;$i++){
+$ii=$i-1;
+$npr=trim($dataname[$ii]);
+?>             
+               i="<?php print($i);?>";
+               var newname = 'node'+i;
+               var element1 = document.createElement('div');
+               element1.setAttribute('draggable','true');
+               element1.setAttribute('class','node1');
+               element1.setAttribute('ondragstart','drag(this, event)');
+               element1.setAttribute('id',newname+suffix);
+               element1.setAttribute('ondragover','return false');
+               element1.innerHTML = "<?php print($npr);?>";
+               document.getElementById(nlist).appendChild(element1);
+           <?php  }
+          ?>
+     }
+
+
+//Function to make the Tiers. It is similar to the above function.
+function makeTiers(nnodes,ntiers) {
+           for (i=1;i<=ntiers;i++){
+               var newname = 'Tier'+i;
+               var element1 = document.createElement('div');
+               //var newpos = i*205;
+               //newpos = 'left: '+newpos+'px';
+               var newheight = nnodes*45 + 40;
+               newheight = newheight+'px';
+               //var newstyle = newpos + newheight;         
+               element1.setAttribute('class','tier');
+               element1.setAttribute('id',newname);
+               element1.setAttribute('ondrop','drop(this, event)');
+               element1.setAttribute('ondragenter','return false');
+               element1.setAttribute('ondragover','return false');
+               //element1.setAttribute('style',newpos);
+               element1.style.height=(newheight);
+               element1.innerHTML = newname +"<br>";
+               document.getElementById('tiers').appendChild(element1);
+            }
+               var newwidth = ntiers*205 + 20;
+               newwidth = newwidth+'px';
+               document.getElementById('tiers').style.width=newwidth;
+}
+
+
+
+function makeTierDesc1(ntiers) {
+               var element1 = document.createElement('div');
+               var newheight = '20px';
+               var newwidth = '220px';
+               element1.setAttribute('id','int_box1_first');
+               element1.setAttribute('class','int');
+               element1.style.height=(newheight);
+               element1.style.width=(newwidth);
+               //element1.innerHTML = "st<br>";
+               document.getElementById('int_box1').appendChild(element1);
+	       for (i=1;i<=ntiers;i++) {
+		 var newname = 'int_box1'+i;
+                 var newheight = '20px';
+                 var newwidth = '205px';
+                 //var newwidth = ntiers*65 + 20;
+                 //newwidth = newwidth+'px';
+                 var element1 = document.createElement('div');
+                 element1.setAttribute('id',newname);
+                 element1.setAttribute('class','int');
+                 element1.innerHTML = "&nbsp&nbspTier"+i+"<br>";
+		 element1.style.height=(newheight);
+		 element1.style.width=(newwidth);
+		 document.getElementById('int_box1').appendChild(element1);
+	       }
+                 
+}
+function makeTierDesc2(ntiers) {
+               var element1 = document.createElement('div');
+               var newheight = '50px';
+               var newwidth = '220px';
+               element1.setAttribute('id','int_box2_first');
+               element1.setAttribute('class','int1');
+               element1.style.height=(newheight);
+               element1.style.width=(newwidth);
+               element1.innerHTML = "Are within tier <br>interactions allowed?<br>";
+               document.getElementById('int_box2').appendChild(element1);
+	       for (i=1;i<=ntiers;i++) {
+		 var newname = 'int_box2'+i;
+                 var newheight = '50px';
+                 var newwidth = '205px';
+                 //var newwidth = ntiers*65 + 20;
+                 //newwidth = newwidth+'px';
+                 var element1 = document.createElement('div');
+                 element1.setAttribute('id',newname);
+                 element1.setAttribute('class','int');
+                 element1.innerHTML = "<br>";
+		 element1.style.height=(newheight);
+		 element1.style.width=(newwidth);
+		 document.getElementById('int_box2').appendChild(element1);
+                       //create form to hold yes/no radio boxes
+                       var form1 = document.createElement('form');
+                       //form1.innerHTML = "Allow edges between nodes in Tier"+i+"?<br>";
+                       var radio_yes = document.createElement('input');
+                       radio_yes.setAttribute('type','radio');
+                       radio_yes.setAttribute('name',"r_yes_no_"+newname);
+                       radio_yes.setAttribute('id',"r_yes_"+newname);
+
+                       radio_yes.value = "r_yes_"+newname;
+                       radio_yes.setAttribute('checked','checked');
+                       form1.appendChild(radio_yes);
+                       var yes_label = document.createElement('label');
+                       yes_label.setAttribute('for',radio_yes.id);
+                       yes_label.innerHTML = "Yes&nbsp&nbsp&nbsp&nbsp&nbsp";
+                       form1.appendChild(yes_label);
+                       var radio_no = document.createElement('input');
+                       radio_no.setAttribute('type','radio');
+                       radio_no.setAttribute('name',"r_yes_no_"+newname);
+                       radio_no.setAttribute('id',"r_no_"+newname);
+                       radio_no.value = "r_no_"+newname;
+                       form1.appendChild(radio_no);
+                       var no_label = document.createElement('label');
+                       no_label.setAttribute('for',radio_no.id);
+                       no_label.innerHTML = "No<br>";
+                       form1.appendChild(no_label);
+                       element1.appendChild(form1);
+                     //  alert(radio_yes.value);
+                     //  alert(radio_yes.checked);
+                     //  alert(radio_no.value); 
+                     //  alert(radio_no.checked);
+	       }
+                 
+}
+
+function makeTierDesc3(ntiers) {
+               var element1 = document.createElement('div');
+               var newwidth = '220px';
+               var newheight = ntiers*10 + 25;
+               newheight = newheight + 'px'; 
+               //var newheight = '50px';
+               //var newwidth = '250px';
+               element1.setAttribute('id','int_box3_first');
+               element1.setAttribute('class','int1');
+               element1.style.height=(newheight);
+               element1.style.width=(newwidth);
+               element1.innerHTML = "Which tiers contain nodes that <br>can be the parents of this tier?<br>";
+               document.getElementById('int_box3').appendChild(element1);
+	       for (i=1;i<=ntiers;i++) {
+		 var newname = 'int_box3'+i;
+                 //var newheight = '50px';
+                 var newwidth = '205px';
+                 //newwidth = newwidth+'px';
+                 var element1 = document.createElement('div');
+                 element1.setAttribute('id',newname);
+                 element1.setAttribute('class','int');
+                 element1.innerHTML = "<br>";
+		 element1.style.height=(newheight);
+		 element1.style.width=(newwidth);
+		 document.getElementById('int_box3').appendChild(element1);
+                       //create form to hold allowed parents
+                       var form2 = document.createElement('form');
+                       //form2.innerHTML = "Which tiers can be the "+
+                       //    "parents of the nodes in Tier"+i+"?<br>";
+		       var k = 0;
+                       for (j=1;j<=ntiers;j++) {
+                          if (j!=i) {
+			    k = k + 1;
+                             var pbox = document.createElement('input');
+                             pbox.setAttribute('type','checkbox');
+                            // pbox.setAttribute('name',"par_"+i);
+                             pbox.setAttribute('name',"par_"+i+"_"+j);
+                             pbox.setAttribute('id',"par_"+i+"_"+j);   
+                             pbox.value = "par_"+i+"_"+j;
+                             if (j<i) {
+                                pbox.setAttribute('checked','checked');
+                             }
+                             var plabel = document.createElement('label');
+                             plabel.setAttribute('for',pbox.id);
+                             if (k%2 == 0) {
+                             plabel.innerHTML = "Tier"+j+"&nbsp&nbsp<br>";
+                             } else {
+                             plabel.innerHTML = "Tier"+j+"&nbsp&nbsp";
+                             }
+                             form2.appendChild(pbox);
+                             form2.appendChild(plabel);  
+                           }
+                        }
+                       element1.appendChild(form2);
+	       }
+}
+
+function makeTierDesc4(ntiers) {
+               var element1 = document.createElement('div');
+               //var newheight = '50px';
+               var newwidth = '220px';
+               var newheight = ntiers*10 + 25;
+               newheight = newheight + 'px'; 
+               element1.setAttribute('id','int_box4_first');
+               element1.setAttribute('class','int1');
+               element1.style.height=(newheight);
+               element1.style.width=(newwidth);
+               element1.innerHTML = "Which tiers contain nodes that<br> can be the children of this tier?<br>";
+               document.getElementById('int_box4').appendChild(element1);
+	       for (i=1;i<=ntiers;i++) {
+		 var newname = 'int_box4'+i;
+                 //var newheight = '50px';
+                 //var newwidth = ntiers*65 + 20;
+                 var newwidth = '205px';
+                 var element1 = document.createElement('div');
+                 element1.setAttribute('id',newname);
+                 element1.setAttribute('class','int');
+                 element1.innerHTML = "<br>";
+		 element1.style.height=(newheight);
+		 element1.style.width=(newwidth);
+		 document.getElementById('int_box4').appendChild(element1);
+                       //create form to hold allowed children
+                       var form3 = document.createElement('form');
+                       //form3.innerHTML = "Nodes in which tiers can be <br>the children of this tier?<br>";
+                       var k = 0;
+                       for (j=1;j<=ntiers;j++) {
+                          if (j!=i) {
+			     k = k + 1;
+                             var cbox = document.createElement('input');
+                             cbox.setAttribute('type','checkbox');
+                             //cbox.setAttribute('name',"child_"+i);
+                             cbox.setAttribute('name',"child_"+i+"_"+j);
+                             cbox.setAttribute('id',"child_"+i+"_"+j);
+
+                             cbox.value = "child_"+i+"_"+j;
+                             if (j>i) {
+                                cbox.setAttribute('checked','checked');
+                             }
+                             var clabel = document.createElement('label');
+                             clabel.setAttribute('for',cbox.id);
+                             if (k%2 == 0) {
+                                clabel.innerHTML = "Tier"+j+"&nbsp&nbsp<br>";
+			      } 
+			       else 
+                              {
+                               clabel.innerHTML = "Tier"+j+"&nbsp&nbsp";
+			      }
+                             form3.appendChild(cbox);
+                             form3.appendChild(clabel);  
+                           }
+                        }
+                       element1.appendChild(form3);
+	       }
+}
+
+
+
+//Old function to make section of page that allows for tier description.
+//Replaced by the four functions above.
+function makeTierDesc(ntiers) {
+                for (i=1;i<=ntiers;i++) {
+                       //var i = 2;
+                       var newname = 'desc_tier'+i;
+                       
+                       //create the outer division to hold the other boxes
+                       var out_div = document.createElement('div');
+                       out_div.setAttribute('id',newname);
+                       if (i==1) {
+                             out_div.innerHTML = "Tier"+i+"<br>";
+                       } else {
+                              out_div.innerHTML = "<br><br>Tier"+i+"<br>";
+                       }
+                       document.getElementById('outer_tier_desc').appendChild(out_div);
+
+                       //create form to hold yes/no radio boxes
+                       var form1 = document.createElement('form');
+                       form1.innerHTML = "Allow edges between nodes in Tier"+i+"?<br>";
+                       var radio_yes = document.createElement('input');
+                       radio_yes.setAttribute('type','radio');
+                       radio_yes.setAttribute('name',"r_yes_no_"+newname);
+                       radio_yes.setAttribute('id',"r_yes_"+newname);
+
+                       radio_yes.value = "r_yes_"+newname;
+                       radio_yes.setAttribute('checked','checked');
+                       form1.appendChild(radio_yes);
+                       var yes_label = document.createElement('label');
+                       yes_label.setAttribute('for',radio_yes.id);
+                       yes_label.innerHTML = "Yes    ";
+                       form1.appendChild(yes_label);
+                       var radio_no = document.createElement('input');
+                       radio_no.setAttribute('type','radio');
+                       radio_no.setAttribute('name',"r_yes_no_"+newname);
+                       radio_no.setAttribute('id',"r_no_"+newname);
+                       radio_no.value = "r_no_"+newname;
+                       form1.appendChild(radio_no);
+                       var no_label = document.createElement('label');
+                       no_label.setAttribute('for',radio_no.id);
+                       no_label.innerHTML = "No<br>";
+                       form1.appendChild(no_label);
+                       out_div.appendChild(form1);
+                     //  alert(radio_yes.value);
+                     //  alert(radio_yes.checked);
+                     //  alert(radio_no.value); 
+                     //  alert(radio_no.checked);
+
+
+                       //create form to hold allowed parents
+                       var form2 = document.createElement('form');
+                       form2.innerHTML = "Which tiers can be the "+
+                           "parents of the nodes in Tier"+i+"?<br>";
+                       for (j=1;j<=ntiers;j++) {
+                          if (j!=i) {
+                             var pbox = document.createElement('input');
+                             pbox.setAttribute('type','checkbox');
+                            // pbox.setAttribute('name',"par_"+i);
+                             pbox.setAttribute('name',"par_"+i+"_"+j);
+                             pbox.setAttribute('id',"par_"+i+"_"+j);   
+                             pbox.value = "par_"+i+"_"+j;
+                             if (j<i) {
+                                pbox.setAttribute('checked','checked');
+                             }
+                             var plabel = document.createElement('label');
+                             plabel.setAttribute('for',pbox.id);
+                             plabel.innerHTML = "Tier"+j;
+                             form2.appendChild(pbox);
+                             form2.appendChild(plabel);  
+                           }
+                        }
+                       out_div.appendChild(form2);
+            
+                    //   alert(pbox.value);
+                   //    alert(pbox.checked);
+                      
+   
+
+                       //create form to hold allowed children
+                       var form3 = document.createElement('form');
+                       form3.innerHTML = "Which tiers can be the "+
+                           "children of the nodes in Tier"+i+"?<br>";
+                       for (j=1;j<=ntiers;j++) {
+                          if (j!=i) {
+                             var cbox = document.createElement('input');
+                             cbox.setAttribute('type','checkbox');
+                             //cbox.setAttribute('name',"child_"+i);
+                             cbox.setAttribute('name',"child_"+i+"_"+j);
+                             cbox.setAttribute('id',"child_"+i+"_"+j);
+
+                             cbox.value = "child_"+i+"_"+j;
+                             if (j>i) {
+                                cbox.setAttribute('checked','checked');
+                             }
+                             var clabel = document.createElement('label');
+                             clabel.setAttribute('for',cbox.id);
+                             clabel.innerHTML = "Tier"+j;
+                             form3.appendChild(cbox);
+                             form3.appendChild(clabel);  
+                           }
+                        }
+                       out_div.appendChild(form3);
+                    //var break = document.createElement('div');
+                    //break.innerHTML = "<br>";
+                    //out_div.appendChild(break);
+                    //out_div.appendChild(break);
+                     //  alert(cbox.value);
+                      // alert(cbox.checked);
+
+                  }
+}
+
+//Function to give the divs for the ban and white lists the correct
+// dimensions.
+function makeBWLists(nnodes) {
+                var newheight = 45*nnodes + 40;
+                var nlheight = newheight+'px';
+                document.getElementById('nodelist2').style.height=nlheight;
+                var inheight = newheight*2; 
+                var outheight = inheight + 50;
+                inheight=inheight+'px';
+                outheight = outheight+'px';
+                document.getElementById('ban_outer').style.height=outheight;
+                document.getElementById('white_outer').style.height=outheight;
+                document.getElementById('ban_from').style.height=inheight;
+                document.getElementById('ban_to').style.height=inheight;
+                document.getElementById('white_from').style.height=inheight;
+                document.getElementById('white_to').style.height=inheight;
+          
+}
+
+
+//Functions that get the locations of the nodes to group the
+// nodes into tiers and make ban and white lists.
+//Will probably need to add a function to get the tier description information.
+//Might be able to do that with just php though?
+function getNodesInTiers(ntiers) {
+                output = ntiers+",\n";
+                for (i=1;i<=ntiers;i++){
+                var newname = 'Tier'+i;
+                children = document.getElementById(newname).childNodes;
+                temp = children.length - 2;
+                temp = newname + ",\t" +temp+ ",\t"
+                for (j=2;j<children.length;j++){
+                temp = temp + children[j].innerHTML + ",\t"
+                }
+                output = output + temp +"\n"
+                }
+                
+                
+                return output;
+                
+               // window.open("http://compbio.uthsc.edu/BNServer/tier.php?tier="+output,"Ratting","width=950,height=270,0,status=0,");
+                
+}
+
+function getNodesInList(from_div,to_div) {
+                children_from = document.getElementById(from_div).childNodes;
+                children_to = document.getElementById(to_div).childNodes;
+                if(children_from.length == children_to.length){
+                    temp = "";                
+                    for (i=2;i<children_from.length;i++){
+                    temp = temp+children_from[i].innerHTML;
+                    temp = temp+",\t"+children_to[i].innerHTML+",\n";
+                    }
+                  
+    
+
+                 }
+                 else 
+                 {
+                   alert('Error in node list');
+                   temp="";
+                 }
+               return temp;
+}
+
+
+//Functions that get the description of the tiers. 
+function getDescribeTiers(ntiers) {
+              output = "";
+              for (i=1;i<=ntiers;i++) {
+               temp="";
+               var newname = 'int_box2'+i;
+                
+               var temp_id_yes="r_yes_"+newname;
+               var temp_id_no="r_no_"+newname;
+               
+                temp_yes = document.getElementById(temp_id_yes);
+                temp_no = document.getElementById(temp_id_no);
+
+               // temp = temp + temp_yes.value + ",\t"
+                temp = temp + temp_yes.checked + ",\t"
+
+               // temp = temp + temp_no.value + ",\t"
+                temp = temp + temp_no.checked + ",\t"
+ 
+                for (j=1;j<=ntiers;j++) {
+                    if(j!=i)
+                    {
+                      var pbox_id="par_"+i+"_"+j;
+                      var cbox_id="child_"+i+"_"+j;
+                      temp_p = document.getElementById(pbox_id);
+                      temp_c = document.getElementById(cbox_id); 
+  
+                      temp = temp + temp_p.checked + ",\t"
+
+                      temp = temp + temp_c.checked + ",\t"
+
+                      
+                     }
+                }   
+               // alert(temp); 
+                
+                output = output + temp +"\n"
+               
+}
+              
+
+              //  window.open("http://compbio.uthsc.edu/BNServer/tierdescription.php?tierdesc="+output,"Ratting","width=950,height=270,0,status=0,");
+              return output;
+                
+}
+
+
+//Combined all three function together and then execute structure learning
+
+function getcombineDescription(ntiers,ban_from,ban_to,white_from,white_to,keyv)
+{
+  var tier=getNodesInTiers(ntiers);
+  var tierdesc=getDescribeTiers(ntiers);
+  var ban=getNodesInList(ban_from,ban_to);
+  var white=getNodesInList(white_from,white_to);
+  window.open("tier_description_processing_gom.php?tier="+tier+"&tierdesc="+tierdesc+"&ban="+ban+"&white="+white +"&My_key="+keyv,'_self',false);
+}
+
+function clearBWLists()
+{
+  var element = document.getElementById('ban_from');
+  var children = element.childNodes;
+  while (children.length>2) {
+    element.removeChild(element.lastChild);
+    var children = element.childNodes;
+  }
+  var element = document.getElementById('ban_to');
+  var children = element.childNodes;
+  while (children.length>2) {
+    element.removeChild(element.lastChild);
+    var children = element.childNodes;
+  }
+  var element = document.getElementById('white_from');
+  var children = element.childNodes;
+  while (children.length>2) {
+    element.removeChild(element.lastChild);
+    var children = element.childNodes;
+  }
+  var element = document.getElementById('white_to');
+  var children = element.childNodes;
+  while (children.length>2) {
+    element.removeChild(element.lastChild);
+    var children = element.childNodes;
+  }
+}
+
+
+
+
+
+</script> 
+</head> 
+
+
+<script type="text/javascript">
+     var nnodes =<?php print($node);?>;
+     var ntiers = <?php print($tier_number);?>;
+</script>
+
+<body onload="loadFunction(nnodes,ntiers)">
+</br>
+        <p><h3>2. Assign variables to tiers:<br></h3>
+         </p>
+        <br>
+        <div id="tier_box">
+        <div id="tiers"></div>
+       
+       </div>
+
+           
+       <div id="outer_tier_desc1">
+       <p><h3>3. Define interactions allowed between tiers:<br></h3> 
+       </p>
+       <br>
+       <div id="int_box1">
+       </div>
+       <br>
+       <div id="int_box2">
+       </div>
+       <br>
+       <div id="int_box3">
+       </div>
+       <br>
+       <div id="int_box4">
+       </div>
+       </div>
+       <br>
+       <br>
+       <br>
+           
+        <div id="outer_box_lists">
+       <p><h3>4. Specify additional constraints:<br></h3>
+       </p>         
+       <br>
+       <div><input type="button" value="Clear lists of banned and required edges" onClick="clearBWLists()"/></div><br>
+        <div id="nodelist2" ondrop="return false"
+        ondragcenter="return false" ondragover="return false" >Nodes<br>
+        </div>
+         
+        <div id="ban_outer">Banned edges<br>
+        <div id="ban_from" class="tier" ondrop="return dropCopy(event)"
+        ondragenter="return false" ondragover="return false">From<br></div>
+        <div id="ban_to" class="tier" ondrop="return dropCopy(event)"
+        ondragenter="return false" ondragover="return false">To<br></div>
+        </div>
+        <div id="white_outer">Required edges<br>
+        <div id="white_from" class="tier" ondrop="return dropCopy(event)"
+        ondragenter="return false" ondragover="return false">From<br></div>
+        <div id="white_to" class="tier" ondrop="return dropCopy(event)"
+        ondragenter="return false" ondragover="return false">To<br></div>
+        </div>
+        </div>
+       
+        <br>
+        <br>
+   
+        
+
+</body> 
+</div>
+</html>
+