var xmlHttp function verify() { //alert("hai"); var security_code=document.getElementById("security_code").value; //alert(security_code); xmlHttp=GetXmlHttpObject(); if (xmlHttp==null) { alert ("Your browser does not support AJAX!"); return; } var url="captcha/checkimage.php"; url=url+"?security_code="+security_code; //url=url+"&rating="+rate; url=url+"&sid="+Math.random(); xmlHttp.onreadystatechange=rateItemstateChanged; xmlHttp.open("GET",url,true); xmlHttp.send(null); } function rateItemstateChanged() { if (xmlHttp.readyState==4) { document.getElementById("verify_security_code").innerHTML=xmlHttp.responseText; } else { //document.getElementById("search_carmodel").innerHTML=""; } } function GetXmlHttpObject() { var xmlHttp=null; try { // Firefox, Opera 8.0+, Safari xmlHttp=new XMLHttpRequest(); } catch (e) { // Internet Explorer try { xmlHttp=new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) { xmlHttp=new ActiveXObject("Microsoft.XMLHTTP"); } } return xmlHttp; }