function getXMLHTTP() { //fuction to return the xml http object
		var xmlhttp=false;	
		try{
			xmlhttp=new XMLHttpRequest();
		}
		catch(e)	{		
			try{			
				xmlhttp= new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch(e){
				try{
				xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
				}
				catch(e1){
					xmlhttp=false;
				}
			}
		}
		 	
		return xmlhttp;
	}
	
	function getCategory(strURL,id) {		
		var id1=id;
		var id2=id1.substr(13);
		var req = getXMLHTTP();
		
		if (req) {
			
			req.onreadystatechange = function() {
				if (req.readyState == 4) {
					// only if "OK"
					if (req.status == 200) {						
						document.getElementById('sec_categoryDropDown').innerHTML=req.responseText;						
					} else {
						alert("There was a problem while using XMLHTTP:\n" + req.statusText);
					}
				}				
			}			
			req.open("GET", strURL, true);
			req.send(null);
		}
				
	}
	
	
	function getCategory2(strURL,sec_id) {		
		//alert(sec_id);
		var sec_id1=sec_id;
		var sec_id2=sec_id1.substr(16);
		//alert(sec_id2);
		var req = getXMLHTTP();
		if (req) {
			
			req.onreadystatechange = function() {
				if (req.readyState == 4) {
					// only if "OK"
					//alert(req.status);
					if (req.status == 200) {	
						
						document.getElementById('third_categoryDropDown').innerHTML=req.responseText;	
						var sec_cat=document.getElementById('third_categoryDropDown').innerHTML;
						if(sec_cat==""){
						document.searchfrm.searchby.value = "cat";
						document.searchfrm.search_id.value = document.searchfrm.sec_lev_category.value;
						document.searchfrm.submit();
						return false;	
						}
						
					} else {
						alert("There was a problem while using XMLHTTP:\n" + req.statusText);
					}
				}				
			}			
			req.open("GET", strURL, true);
			req.send(null);
		}
				
	}