// JavaScript Document
function onReadyState()
{
	var data=null;
	if (req.readyState==READY_STATE_COMPLETE)
	{
		var xmlDoc = req.responseText; //receives the response text from back page
		var pos=xmlDoc.indexOf('^');
		var len=xmlDoc.length;
		var content=xmlDoc.substring(0,pos);
		var num=xmlDoc.substring(pos+1,len);
		//alert(xmlDoc);
		
		if(num==33)
		{
			var matchPos1 = content.search("@@@@@@@");
			if(matchPos1 != -1) {
				alert("Your message contains spam, request not posted.");
				document.getElementById('imageField').disabled = true;
			} else {
				document.getElementById('imageField').disabled = false;
			}
		}
	}
}