var xmlHttp; 
			
		var is_ie = (navigator.userAgent.indexOf('MSIE') >= 0) ? 1 : 0; 
		var is_ie5 = (navigator.appVersion.indexOf("MSIE 5.5")!=-1) ? 1 : 0; 
		var is_opera = ((navigator.userAgent.indexOf("Opera 6")!=-1)||(navigator.userAgent.indexOf("Opera/6")!=-1)) ? 1 : 0; 
		//netscape, safari, mozilla behave the same??? 
		var is_netscape = (navigator.userAgent.indexOf('Netscape') >= 0) ? 1 : 0; 
			
		function image_chk(){ 
			
				//Append the name to search for to the requestURL 
				var url = requestURL ; 
//				url = url+"&E="+strEmail;
				//alert(url);
				//Create the xmlHttp object to use in the request 
				//stateChangeHandler will fire when the state has changed, i.e. data is received back 
				// This is non-blocking (asynchronous) 
				xmlHttp = GetXmlHttpObject(stateChangeHandler); 
	              //alert("xmlHttp " + xmlHttp);
				//Send the xmlHttp get to the specified url 
				xmlHttp_Get(xmlHttp, url); 
			
			
		} 

		//stateChangeHandler will fire when the state has changed, i.e. data is received back 
		// This is non-blocking (asynchronous) 
		function stateChangeHandler() 
		{ 
			//readyState of 4 or 'complete' represents that data has been returned 
			if (xmlHttp.readyState == 4 || xmlHttp.readyState == 'complete'){ 
				//Gather the results from the callback 
				var str = xmlHttp.responseText; 
				 showavailability(str);
			//		 alert(str);
				/*
				//Populate the innerHTML of the div with the results 
				document.getElementById('searchlist').innerHTML = str;
				coordinateX=findPosX(document.getElementById('txtName'));
				coordinateY=findPosY(document.getElementById('txtName'))+21;
				MM_showHideLayers('searchlist','','show');
				moveObject('searchlist',coordinateX,coordinateY)
				var combo=document.getElementById("combosel").options;
				var len=combo.length;
				if (len <=0)
				{
				MM_showHideLayers('searchlist','','hide');
				}
				*/
				
			} 
		} 

		// XMLHttp send GET request 
		function xmlHttp_Get(xmlhttp, url) { 
			xmlhttp.open('GET', url, true); 
			xmlhttp.send(null); 
		} 

		function GetXmlHttpObject(handler) { 
			var objXmlHttp = null;    //Holds the local xmlHTTP object instance 
			//Depending on the browser, try to create the xmlHttp object 
			if (is_ie){ 
				//The object to create depends on version of IE 
				//If it isn't ie5, then default to the Msxml2.XMLHTTP object 
				var strObjName = (is_ie5) ? 'Microsoft.XMLHTTP' : 'Msxml2.XMLHTTP'; 
				//Attempt to create the object 
				try{ objXmlHttp = new ActiveXObject(strObjName); objXmlHttp.onreadystatechange = handler; } 
				catch(e){ alert('IE detected, but object could not be created. Verify that active scripting and activeX controls are enabled'); return; } 
				//Object creation errored 
			} 
			else if (is_opera){ alert('Opera detected. The page may not behave as expected.'); return; } //Opera has some issues with xmlHttp object functionality 
			else{ objXmlHttp = new XMLHttpRequest(); objXmlHttp.onload = handler; objXmlHttp.onerror = handler; } 
	         // Mozilla | Netscape | Safari 
			//Return the instantiated object 
			return objXmlHttp; 
		} 

		
function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}
		
function MM_showHideLayers() { //v3.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v; }
    obj.visibility=v;
//	obj.style.top = findPosY(document.getElementById('search_img'))+100;
//    obj.style.left = findPosX(document.getElementById('search_img'))+100;
	}
}

function showavailability(val)
{
	
	var chk=val.split("_");
	document.getElementById("usr_avail").src='security_images/'+chk[0]+".jpg";
	document.getElementById("sessionid").value=chk[1];
		
			
}