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;
    }


var country;
country='';
function showCity(value,div_name,select_name)
{
	country=value;
getCity(country,div_name,select_name);
}
	
	function getCity(country,div_name,select_name) {		
		
		var strURL="category.php?parentid="+country+"&select="+select_name;
		//alert(strURL)
		var req = getXMLHTTP();
		
	if (req) {
		
		req.onreadystatechange = function() {
			if (req.readyState == 4) {
				// only if "OK"
				
				if (req.status == 200) {					
				document.getElementById("city1").style.display = 'none';
				document.getElementById(div_name).innerHTML=req.responseText						
				} else {
					alert("There was a problem while using XMLHTTP:\n" + req.statusText);
				}
			}				
		}			
			req.open("GET", strURL, true);
			req.send(null);
		}		
	}