var xmlHttp
var xmlHttp2
var xmlHttp3

function showDescription(page_url, id, c_id){

	xmlHttp=GetXmlHttpObject()
	if (xmlHttp==null)
		{
			alert ("Browser does not support HTTP Request")
			return
		} 	
		
		xmlHttp2=GetXmlHttpObject()
	if (xmlHttp2==null)
		{
			alert ("Browser does not support HTTP Request")
			return
		}
		
		xmlHttp3=GetXmlHttpObject()
	if (xmlHttp3==null)
		{
			alert ("Browser does not support HTTP Request")
			return
		}		
		
		
		if (id !=0){
		
		var url="primarytemplatefiles/customcode/empty.cfm"
		url=url+"?sid="+Math.random()
		
		var url1="primarytemplatefiles/customcode/supportlinks.cfm?id="+id
		url1=url1+"&sid="+Math.random()
		
		var url2="primarytemplatefiles/customcode/major_descriptions.cfm?id="+id
		url2=url2+"&sid="+Math.random()
		
		}		
		
	
		if (id == 0){
		var url=page_url+"?college="+c_id
		url=url+"&sid="+Math.random()
			
		var url1="primarytemplatefiles/customcode/empty.cfm"
		url1=url1+"?sid="+Math.random()	
		
		var url2=c_id+"_introduction.cfm"
		url2=url2+"?sid="+Math.random()
		
		}		
		
		
		xmlHttp.onreadystatechange=stateChanged;
	    xmlHttp2.onreadystatechange=stateChanged2;
		xmlHttp3.onreadystatechange=stateChanged3;
		
		
		xmlHttp.open("GET",url,true)
	    xmlHttp.send(null)
				
		xmlHttp2.open("GET",url1,true)
		xmlHttp2.send(null)
				
		xmlHttp3.open("GET",url2,true)
		xmlHttp3.send(null)
	
    }



function stateChanged() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
		{ 
			document.getElementById("subcontent").innerHTML=xmlHttp.responseText
		} 
} 

function stateChanged2() 
{ 
	if (xmlHttp2.readyState==4 || xmlHttp2.readyState=="complete")
		{ 	
			document.getElementById("support_links").innerHTML=xmlHttp2.responseText;
		} 
		
} 

function stateChanged3() 
{ 
	if (xmlHttp3.readyState==4 || xmlHttp3.readyState=="complete")
		{ 			
			document.getElementById("introduction").innerHTML=xmlHttp3.responseText;
		} 
		
} 

/*---------------- Overlay -----------------------------

function getposOffset(overlay, offsettype){
var totaloffset=(offsettype=="left")? overlay.offsetLeft : overlay.offsetTop;
var parentEl=overlay.offsetParent;
while (parentEl!=null){
totaloffset=(offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop;
parentEl=parentEl.offsetParent;
}
return totaloffset;
}

function overlay(curobj, subobjstr, opt_position, yrtr, id, page_url, techid){
showDescription('/orientation/portal/video_script/video_barb.html' , 0, 0);

if (document.getElementById){
var subobj=document.getElementById(subobjstr)
subobj.style.display=(subobj.style.display!="block")? "block" : "none"
var xpos=getposOffset(curobj, "left")+((typeof opt_position!="undefined" && opt_position.indexOf("right")!=-1)? -(subobj.offsetWidth-curobj.offsetWidth) : 0) 
var ypos=getposOffset(curobj, "top")+((typeof opt_position!="undefined" && opt_position.indexOf("bottom")!=-1)? curobj.offsetHeight : 0)
subobj.style.left=xpos+"px"
subobj.style.top=ypos+"px"
return false
}
else
return true
}

function overlayclose(subobj){
document.getElementById(subobj).style.display="none"
}

*/



function GetXmlHttpObject()
{ 
	var objXMLHttp=null
	if (window.XMLHttpRequest)
		{
			objXMLHttp=new XMLHttpRequest()
		}
	else if (window.ActiveXObject)
		{
			objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
		}
	return objXMLHttp
}