// Get the HTTP Object
function getHTTPObject(){
	if (window.ActiveXObject){
		return new ActiveXObject("Microsoft.XMLHTTP");
	}else if(window.XMLHttpRequest){
		return new XMLHttpRequest();
	}else{
		alert("Your browser does not support AJAX.");
		return null;
	}
	
	
}


//this changes the chalange phrase and returns Image name
function tmrefresh(sKey){
	
	//alert(sKey);
	httpObject = getHTTPObject();
	//alert (httpObject);
	if (httpObject != null){
		httpObject.open("GET", "/tmcaptcha/tmCliRefreshImg.php?q="+sKey,true);
		httpObject.send(null);
		httpObject.onreadystatechange = changeImg;
	}
}


function changeImg(){
	if(httpObject.readyState == 4){
		//alert(httpObject.responseText);
		//document.getElementById('_tm_cap_img_').value = httpObject.responseText;
		document.images['_tm_cap_img_'].src=httpObject.responseText;
	}
}