//得到当前鼠标位置
var domType = ''; 
if (document.all) 
{ 
	domType = "ie4"; 
} 
else if (document.getElementById) 
{ 
	domType = "std"; 
} 
else if (document.layers) 
{ 
	domType = "ns4"; 
} 
function initMouseMove()
{ 
	if(!document.all)
	{ 
		document.captureEvents(Event.MOUSEMOVE); 
	} 
	document.onmousemove = mouseMove; 
} 
function mouseMove(e)
{ 
	var x,y; 
	if(!document.all)
	{ 
		fetch_object("txt").value="move"; 
		x=e.pageX; 
		y=e.pageY; 
	}
	else
	{ 
		x=document.body.scrollLeft+event.clientX; 
		y=document.body.scrollTop+event.clientY; 
	} 
	document.getElementById("hint").style.position="";
	document.getElementById("hint").style.left=x+10;
	document.getElementById("hint").style.top=y+10;
} 
var objects=new Array();
function fetch_object(idname, forcefetch) 
{ 
	if (forcefetch || typeof(objects[idname]) == "undefined") 
	{ 
		switch (domType) 
		{ 
			case "std": 
			{ 
			objects[idname] = document.getElementById(idname); 
			} 
			break;
			case "ie4": 
			{ 
			objects[idname] = document.all[idname]; 
			} 
			break;
			case "ns4": 
			{ 
			objects[idname] = document.layers[idname]; 
			} 
			break; 
		} 
	} 
	return objects[idname]; 
} 
function chkform_indexlogin()
{
	var t1=document.userlogin.textfield1.value;
	var t2=document.userlogin.textfield2.value;
	if(t1==""||t1==null)
	{
		alert("登录用户名不能为空!");
		document.userlogin.textfield1.focus();
		return false;
	}
	else if(t2==""||t2==null)
	{
		alert("登录密码不能为空!");
		document.userlogin.textfield2.focus();
		return false;
	}
	else
	{
		return true;
	}
}
function showme(obj)
{
 var cid=obj;
 var oSon=window.document.getElementById("hint");
 if (oSon==null) return;
 with (oSon) 
 {
    style.display="block";
 }
 chkUser(cid);
}
function hidme()
{
 var oSon=window.document.getElementById("hint");
 if (oSon==null) return;
 oSon.style.display="none";
}
var xmlHttp;
function createXMLHttpRequest()
{
	if(window.ActiveXObject)
	{
		xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
	}
	else if(window.XMLHttpRequest)
	{
		xmlHttp=new XMLHttpRequest();
	}
}
function chkUser(userId)
{
	try
	{
		createXMLHttpRequest();
	}
	catch(exception){}
	try
	{
		var userObj = document.getElementById(userId);
		var url = "/jscript/getinfo.asp?id=" +userId;
		xmlHttp.open("GET", url, true);
		xmlHttp.onreadystatechange = checkUserOk;
		xmlHttp.send(null);
	}
	catch(exception){}
}
function checkUserOk()
{
	if (xmlHttp.readyState == 4) 
	{
		try
		{
			var response = xmlHttp.responseText;
			var alertObj = document.getElementById("hint");
			alertObj.innerHTML=response;
		}
		catch(exception){}
	}	
}