function logHook(a){
		
		 var xmlHttpReq = false;
		var self = this;
		
		if (window.XMLHttpRequest) {
			self.xmlHttpReq = new XMLHttpRequest();
		}
		else if (window.ActiveXObject) {
			self.xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
		}
		
		self.xmlHttpReq.open('POST',"/include/log_hook.php", true);
		self.xmlHttpReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
		self.xmlHttpReq.onreadystatechange = function() {
			if (self.xmlHttpReq.readyState == 4) {
				//alert(self.xmlHttpReq.responseText);
			}
		}

		self.xmlHttpReq.send("tag="+escape(a));
	}