// JavaScript Document
		var xmlHttp;
		var tNextSelect;
		var c_value;
		function createXMLHttpRequest() {
			if (window.ActiveXObject) {
				xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
			} 
			else if (window.XMLHttpRequest) {
				xmlHttp = new XMLHttpRequest();                
			}
		}
	
        function getNextSelect(currSelect,nextSelect,lastSelect) {
			tNextSelect = nextSelect;
			c_value = document.getElementById(currSelect).value;
			if(c_value)
			{
				document.getElementById("layer1").style.display="";
				createXMLHttpRequest();
				var url = "CreateNextSelect?c_value="+c_value+"&nextSelect="+tNextSelect+"&lastSelect="+lastSelect;
				xmlHttp.open("GET", url, true);
				xmlHttp.onreadystatechange = startCallback;
				xmlHttp.send(null);
			}
        }

        function startCallback() {
            if (xmlHttp.readyState == 4) {
                if (xmlHttp.status == 200) {  
					document.getElementById("layer1").style.display="none";
					document.getElementById("s_"+tNextSelect).innerHTML = xmlHttp.responseText;
            	}
       	 	}
		}