function DoCallback(data) 
{ 
    // branch for native XMLHttpRequest object 
    if (window.XMLHttpRequest) { 
        req = new XMLHttpRequest(); 
        req.onreadystatechange = processReqChange; 
        req.open('POST', url, true); 
        req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); 
        req.send(data); 
    // branch for IE/Windows ActiveX version 
    } else if (window.ActiveXObject) { 
        req = new ActiveXObject('Microsoft.XMLHTTP') 
        if (req) { 
            req.onreadystatechange = processReqChange; 
            req.open('POST', url, true); 
            req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); 
            req.send(data); 
        } 
    } 
} 
 
function processReqChange() { 
    // only if req shows 'loaded' 
    if (req.readyState == 4) { 
        // only if 'OK' 
        if (req.status == 200) { 
            eval(what); 
        } else { 
            alert('There was a problem retrieving the XML data: ' + 
                req.responseText); 
        } 
    } 
} 
function SetValues(StrReturnedValue, StrFieldName) 
{ 
 var dropDownBox = document.getElementById(StrFieldName); 
 dropDownBox.options.length = 0;
 if(StrReturnedValue != "")
 {
	var arrAllValues = StrReturnedValue.split(",");	
	for(i = 0; i < arrAllValues.length; i++)
	{
		if(arrAllValues[i] != "")
		{
			//split again to get id
			var arrValues = arrAllValues[i].split("|");	
			dropDownBox.options[dropDownBox.options.length] = new Option(arrValues[0], arrValues[1]);

		}
	}
 }
}