function ajax_call(url, paramiters, element_id)
{
	var http = false;
	
	if(navigator.appName == "Microsoft Internet Explorer")
  		http = new ActiveXObject("Microsoft.XMLHTTP");
	else
 	 	http = new XMLHttpRequest();
	
	http.open("GET", url+paramiters, true);
 	http.onreadystatechange=function()
	{
		if(http.readyState == 4)
			document.getElementById(element_id).innerHTML = http.responseText;
  	}
	
  	http.send(null);
}