function makeRequest(url, element_id, size)
{
	
	var id = element_id;
	http_request = false;
		 
	
	
	if (window.XMLHttpRequest)
	{ 
	  http_request = new XMLHttpRequest();		
	}
	
	else if (window.ActiveXObject)
	{ 
		try
		{
			http_request = new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e)
		{
			try
			{
		  	http_request = new ActiveXObject("Microsoft.XMLHTTP");
		  }
			catch (e)
			{
				
			}
		}
	}
	
	if (!http_request)
	{
		//alert("Kann keine XMLHTTP-Instanz erzeugen");
  	return false;
  }
  else
	{
		
		
  	http_request.open('GET', url, true);
  	
		http_request.onreadystatechange = function() {						
			
		if( (http_request.readyState == 3 || http_request.readyState == 2 || http_request.readyState == 1 || http_request.status != 200) )  
		{
	  	//document.getElementById(id).innerHTML = 'Lade Bild...';
			//document.getElementById(id).style.display = 'none';
			document.getElementById(id).width = 20;
			document.getElementById(id).height = 20;			
			document.getElementById(id).src = 'images/ajax/89.gif';
			document.getElementById(id).style.display = 'inherit';
			
			
	  }
	  
	  else 
	  	if (http_request.readyState == 4 && http_request.status == 200) 
				{
					//
	  			var pic = http_request.responseText;
	  			
					document.getElementById(id).style.display = 'none';
					document.getElementById(id).src = 'images/x.png';
					document.getElementById(id).width = 3;
					document.getElementById(id).height = 3;					
					
					document.getElementById(id).src = pic;
									
					document.getElementById(id).width = size;
					document.getElementById(id).height = size;
					document.getElementById(id).style.display = 'inherit';
				//var element = document.getElementByName(id);
				//element.display = "block";
				
				//document.getElementsByClassName('pos_abs').style.display = 'block';										
				}
		}		
  	http_request.send(null);
  }		 
}

function stopRequest(element_id)
{
	var id = element_id;
	
	//XMLHttpRequest.abort;
		
	http_request.abort;
	document.getElementById(id).src = 'images/x.png';
	document.getElementById(id).width = 3;
	document.getElementById(id).height = 3;	
	document.getElementById(id).style.display = 'none';
	
	//var element = document.getElementByName(id);
  //element.display = "none";
	
	//document.getElementsByClassName('pos_abs').style.display = 'none';
}