function setLoginKey(userName){
   var ajaxRequest = checkForAjaxSupport();
   if (ajaxRequest) {
      ajaxRequest.onreadystatechange = function() {
		   if(ajaxRequest.readyState == 4){
			   //document.getElementById('').value = ajaxRequest.responseText);
		   }
	   }
      var queryString = "?bustcache=" + new Date().getTime();
	   ajaxRequest.open("GET", "./php/.php" + queryString, true);
	   ajaxRequest.send(null);
   } else {
      alert("Your browser doesn't seem to support Javascript.");
   }
}

function checkForAjaxSupport() {
   var ajaxRequest;
	try {
		// Opera 8.0+, Firefox, Safari
		ajaxRequest = new XMLHttpRequest();
	} catch (e){
		// Internet Explorer Browsers
		try{
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// Something went wrong
				alert("Your browser doesn't seem to support Javascript.");
				return false;
			}
		}
	}
   return ajaxRequest;
}