function getHTTPObject() {
  	var xhr = false;
  	if (window.XMLHttpRequest) {
   		xhr = new XMLHttpRequest();
  	} else if (window.ActiveXObject) {
   		try {
	     	xhr = new ActiveXObject("Msxml2.XMLHTTP");
    	} catch(e) {
   	  	try {
     	  	xhr = new ActiveXObject("Microsoft.XMLHTTP");
     		} catch(e) {
       		xhr = false;
     		}
   		}
  	}
  	return xhr;
	}

	function sendData(data,modelid) {
 		var request = getHTTPObject();
 		if (request) {
   		request.onreadystatechange = function() {
   	  	parseResponse(request,modelid);
   		};
   		request.open( "GET", "/webcam/chat_invite.php?amateur_id="+modelid, true );
   		request.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
   		request.send(data);
   		return true;
 		} else {
    	return false;
 		}
	}

	function parseResponse(request,modelid) {
		var tmpstr = new Array();
		var dispstr;
		var i;
			
  	if (request.readyState == 4) {
    	if (request.status == 200 || request.status == 304) {	    		
	    		alert("Your invitation was sent to " + modelid + ".\nPlease wait for about 20 seconds or more and refresh this page.");
	    		history.go(0);
    	}
  	}
	}

	function SendInvitation(modelid,user_id) 
	{ 
		var yesno; 
	
		if ((user_id == null) || (user_id.length == 0)) {
			yesno = "If you want to invite a model to XTube Cams Chat Room, you must be a member of XTube.com and login first. If you are not a member, it is free for you to signup.";
			alert(yesno);
		}
		else {
			yesno = confirm("Inviting " + modelid + " to XTube Cams Chat Room. \nAre you sure?");
			if (yesno)
				sendData("",modelid); 
		}
	}