function createXMLHttpRequest(){
	var request = false; 
	
	try { 
	
	  xmlHttp = new XMLHttpRequest(); 
	
	} catch (trymicrosoft) { 
	
	  try { 
	
	    xmlHttp = new ActiveXObject("Msxml2.XMLHTTP"); 
	
	  } catch (othermicrosoft) { 
	
	    try { 
	
	      xmlHttp = new ActiveXObject("Microsoft.XMLHTTP"); 
	
	    } catch (failed) { 
	
	      xmlHttp = false; 
	
	    } 
	
	  } 
	
	} 
	
	  
	
	if (!xmlHttp) {
		alert("Error initializing XMLHttpRequest!"); 
	}

	return xmlHttp;
}