<!--
// 首页登陆框脚本

var xmlHttp;
	function doLogin2(url) 
	{
		check(); 
		document.forms[0].action="/en_lg/en_login_submit.jsp?url="+url ;	
		document.forms[0].target="commfrm";	
		document.forms[0].submit() ;
	}
	function doLogin() 
	{ 
		document.forms[0].action="/en_lg/en_login_submit.jsp";	
		document.forms[0].target="commfrm";		
		document.forms[0].submit() ;
	}
	function check(){
		//检查用户名和密码
			var userName = document.forms[0].user_loginName ; 
			var password = document.forms[0].user_password ;
			var rand = document.forms[0].rand ;		
			if ( userName.value.length == 0 ) {
				alert("Account is required.");
				userName.focus() ;
				return ;
			}
			if ( password.value.length == 0 ) {
				alert("Password is required.");
				password.focus() ;
				return ;
			}
			if ( rand.value.length == 0 ) {
				alert("ImageCode is required.");
				rand.focus() ;
				return ;
			}
	     
		 var returnText =getInfo(userName.value,password.value,rand.value); //登录
		 
		 //alert("returnText===="+returnText);
		 if(returnText != null && (returnText=="RAND" || returnText.indexOf("RAND") != -1))
		{
			 alert("Incorrect ImageCode.");
			 ref_image();
			 return;
		}
		 if(returnText != null && (returnText=="USER" || returnText.indexOf("USER") != -1))
		{
			 alert("Incorrect Account or Password.");
			 ref_image();
			 return;
		}
	
		 if(returnText != null && (returnText=="PASSWORD" || returnText.indexOf("PASSWORD") != -1))
		{
			 alert("Incorrect Account or Password.");
			 ref_image();
			 return;
		}
		 if(returnText != null && (returnText=="LG_USER" || returnText.indexOf("LG_USER") != -1))
		{
			 alert("此用户注册的不是物流业务身份,可能是招聘/应聘会员,建议登录后补充物流身份后再使用！");
			 ref_image();
			 return;
		}
	}
	//回车事件
	function keyDown13(evt)
	{
	     if(!CheckBrowser())evt=null;
	     var obj={"keyCode":evt?evt.which:(window.event?window.event.keyCode:null)};//兼容火狐IE
		 if (obj.keyCode == 13) 
		 {      
		 	doLogin();	  
		 }
	} 

function createXMLHttpRequest()
{ 
	if(window.ActiveXObject)
	{
		xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
	}	
	else if(window.XMLHttpRequest)
	{ 
		xmlHttp=new XMLHttpRequest();
	} 
}
//
function getInfo(user_name,password,rand){
     var value="";//返回值
     var url="/en_index_login_valid.jsp?user_loginName="+user_name+"&user_password="+password+"&rand="+rand;//动作页面
     createXMLHttpRequest(); 
 
   	 xmlHttp.open("GET",url, true);
   	 xmlHttp.setRequestHeader("If-Modified-Since","0");
	 xmlHttp.send(null); 
	 xmlHttp.onreadystatechange=function()
	{	
		if(xmlHttp.readyState==4)
		{
			if(xmlHttp.status==200)
			{	
             	 value=xmlHttp.responseText;
			}
		}
	}
	 return value;
}
//判断浏览器类型
function CheckBrowser()
{
   var app=navigator.appName;
   var verStr=navigator.appVersion;
   if (app.indexOf('Netscape') != -1) {
	     return true;//火狐
   }else if (app.indexOf('Microsoft') != -1) {
	    return false;//IE
   }
   return false;
} 
-->