var ajaxformobj;
function getXmlHttpRequestObject() {
	if (window.XMLHttpRequest) {
		return new XMLHttpRequest(); //Mozilla, Safari ...
	} else if (window.ActiveXObject) {
		return new ActiveXObject("Microsoft.XMLHTTP"); //IE
	} else {
		alert("Your browser doesn't support the XmlHttpRequest object.");
	}
}
var receiveReq = getXmlHttpRequestObject();

function makeRequest1(url, param) {
	if (receiveReq.readyState == 4 || receiveReq.readyState == 0) {
		receiveReq.open("POST", url+"?"+param, true);
		receiveReq.onreadystatechange = updatePage1;
		/*receiveReq.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
		receiveReq.setRequestHeader("Content-length", param.length);
		receiveReq.setRequestHeader("Connection", "close");*/
		receiveReq.send(null);
	}   
}
function updatePage1() {
	if(receiveReq.readyState!=4) {
		document.getElementById("div_checking1").innerHTML="<strong>Checking...</strong>";
	}
	if(receiveReq.readyState == 4) {
		document.getElementById("div_checking1").innerHTML="";
		var result = receiveReq.responseText;		
		if(result!="1") {
			img = document.getElementById('imgCaptcha'); 
			img.src = '/captcha1/create_image1.php?' + Math.random();
			alert("Please enter valid Verification Code.");
			ajaxformobj.txt_code1.value='';
			ajaxformobj.txt_code1.focus();
			return false;
		} else {
			ajaxformobj.submit();
		}
	}
}
function getParam1(theForm) {	
	ajaxformobj=theForm;
	var url = '/captcha1/captcha1.php';
	var postStr=theForm.txt_code1.name+"="+encodeURIComponent( theForm.txt_code1.value );
	makeRequest1(url, postStr);
}