// JavaScript Document
   var http_request = false;
   
     
   function makeRequestB(url) 
   {
      http_request = false;
      if (window.XMLHttpRequest) 
	  { // Mozilla, Safari,...
         http_request = new XMLHttpRequest();
         if (http_request.overrideMimeType) 
		 {
            http_request.overrideMimeType('text/xml');
         }
      } 
	  else 
	  	if (window.ActiveXObject) 
		{ // IE
        	try 
			{
            	http_request = new ActiveXObject("Msxml2.XMLHTTP");
			} catch (e) 
			{
            	try 
				{
					http_request = new ActiveXObject("Microsoft.XMLHTTP");
            	} catch (e) {}
         	}
      	}
		if (!http_request) 
		{
			alert('Cannot create XMLHTTP instance');
			return false;
      	}
      	http_request.onreadystatechange = alertContentsB;
      	http_request.open('GET', url , true);
      	http_request.send(null);
   }

   function alertContentsB() 
   {
      if (http_request.readyState == 4) 
	  {
         if (http_request.status == 200) 
		 {
			fechaAct = http_request.responseText;
         } 
		 else 
		 {}
      }
   }
   
   function damefecha() 
   {
	  var llamada = "damefecha.asp";
	  var yourDate = new Date();
	  
	  llamada = llamada + "?a=" + yourDate.getTime(); 
	//  alert(llamada);  
      makeRequestB(llamada);
   }