function createXMLHttpRequest() {
		var xmlHttp;
		try
		   {
		     // try to create XMLHttpRequest object
		     xmlHttp = new XMLHttpRequest();
		
		   }
		   catch(e)
		   {
		   var prefixes = ["MSXML2.XmlHttp","Microsoft.XmlHttp","MSXML3.XmlHttp", "MSXML.XmlHttp"];
		     // assume IE6 or older
		   	for (var i = 0; i < prefixes.length; i++) {
				try{xmlHttp = new ActiveXObject(prefixes[i]);}catch(ex){};
			}
		       
		   }
		   // return the created object or display an error message
		   if (!xmlHttp)
		     alert("Error creating the XMLHttpRequest object.");
		   else
		     return xmlHttp;
    }
function loadCurUser(){
	if(document.getElementById('welcome_word')!=null){
		var url='/user/curUser.jsp';
		var xmlHttp = createXMLHttpRequest();
		xmlHttp.open("post",url, true);
		xmlHttp.onreadystatechange = function () {	
			switch (xmlHttp.readyState) {		
			   case 4 :  
				   if (xmlHttp.status == 200){
				document.getElementById('welcome_word').innerHTML=xmlHttp.responseText
			       }
			       
			} 
		}			
		xmlHttp.send(null);
	}
}
function loadCurUser2(){
	if(document.getElementById('left_login')!=null){
	var url='/user/curUser2.jsp';
	var xmlHttp = createXMLHttpRequest();
	xmlHttp.open("post",url, true);
	xmlHttp.onreadystatechange = function () {	
	switch (xmlHttp.readyState) {		
	   case 4 :  
		   if (xmlHttp.status == 200){
			   if(xmlHttp.responseText!=''){
					document.getElementById('left_login').innerHTML=xmlHttp.responseText
				}
	       }   
		} 
	}			
	xmlHttp.send(null);
	}
}
function checkUser(){
	var url='/user/curUser4.jsp';
	var user=0;
	var xmlHttp = createXMLHttpRequest();
	xmlHttp.open("post",url, true);
	xmlHttp.onreadystatechange = function () {	
	switch (xmlHttp.readyState) {		
	   case 4 :  
		   if (xmlHttp.status == 200){
			  user=xmlHttp.responseText
	       }   
		} 
	}			
	xmlHttp.send(null);
	var v=confirm("确认填写信息，并生成订单?");
	if(!v){
		return false;
	}
	if(user!=1){
		return false;
	}else{
		return true;
	}
}
loadCurUser();
loadCurUser2();