// JavaScript Document

function createXMLHttpRequest() {  
	var ua;  
	if(window.XMLHttpRequest) {  
		try {  
			ua = new XMLHttpRequest();  
		} catch(e) {  
			ua = false;  
		}  
	} else if(window.ActiveXObject) {  
		try {  
			ua = new ActiveXObject("Microsoft.XMLHTTP");  
		}catch(e) {  
			ua = false;  
		}  
	} 
	return ua;
}