var xmlHttp
function showUser(str)
{ 
	xmlHttp=createXMLHttp()
	if (xmlHttp==null)
	 {
	 alert ("Browser does not support HTTP Request")
	 return
	 }
	var url="module/cbo3.php"
	url=url+"?q="+str
	//url=url+"&sid="+Math.random()
	xmlHttp.onreadystatechange=stateChanged 
	xmlHttp.open("GET",url,true)
	xmlHttp.send(null)
}

function stateChanged() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	 { 
	 document.getElementById("cbo3").innerHTML=xmlHttp.responseText; 
	 } 
}

function createXMLHttp() {
	   	
	if (typeof XMLHttpRequest != "undefined") {
		return new XMLHttpRequest(); //Mozilla Firefox, Safari, and Opera…
	} 
	else if (window.ActiveXObject) {
	
		var aVersions = [ "MSXML2.XMLHttp.5.0", "MSXML2.XMLHttp.4.0", "MSXML2.XMLHttp.3.0","MSXML2.XMLHttp", "Microsoft.XMLHttp"];
		for (var i = 0; i < aVersions.length; i++) {

			try {
				var oXmlHttp = new ActiveXObject(aVersions[i]);
				return oXmlHttp;
			} catch (oError) {
				//Do nothing
			}
		 }
	}//end else
		throw new Error("XMLHttp object could be created.");
}