var httpRequest;
     
     function SendGet(url, readystatefunction)
     {
         httpRequest = null;
         
         if(window.XMLHttpRequest) {
             httpRequest = new XMLHttpRequest();
             if(httpRequest.overrideMimeType) {
                 httpRequest.overrideMimeType('text/html');
             }
         } else if (window.ActiveXObject) {
             try {
                 httpRequest = new ActiveXObject("Msxml2.XMLHTTP");
             } 
             catch (e) {
                 try {
                     httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
                 } 
                 catch (e) {}
             }
         }

         if(!httpRequest){
             return false;
         }
	    	
	     httpRequest.onreadystatechange = function() { readystatefunction(httpRequest) };
         httpRequest.open('GET', url, true);
         httpRequest.send(null);
         
         return true;
     }