function checkUser(f){
	var userid = f.userid.value;
	var pass   = f.pass.value;

	if(!userid) {
		alert("请输入用户名!");
		f.userid.focus();
		return false;
	}
	if(!pass) {
		alert("请输入密码!");
		f.pass.focus();
		return false;
	}
	return true;
}

function ChangeCity(evt){
	document.getElementById("chCity").style.left = evt.clientX - 80;
	document.getElementById("chCity").style.display = '';
	showCity(curCity,'chCity');
}

function  showCity(tt,div)
{
	var  daps  =  document.all(div).style;
	var  ttop  =  tt.offsetTop;          //TT控件的定位点高
	var  thei  =  tt.clientHeight;       //TT控件本身的高
	var  tleft =  tt.offsetLeft;         //TT控件的定位点宽

	var  ttyp  =  tt.type;               //TT控件的类型
	while (tt  =  tt.offsetParent)
	{
		ttop  += tt.offsetTop;  
		tleft += tt.offsetLeft;
	}

	daps.left     =  tleft - 73;         //层的X坐标
	daps.top      =  ttop + thei + 37;   //层的Y坐标
	daps.display  =  "";                 //层显示
}

var selectedtablink = ""
var tcischecked = false

function link(aobject)
{
	selectedtablink = aobject.href
	tcischecked = (document.tabcontrol && document.tabcontrol.tabcheck.checked)? true : false
	if (document.getElementById && !tcischecked)
	{
		var tabobj = document.getElementById("tablist")
		var tabobjlinks = tabobj.getElementsByTagName("A")
		for (i=0; i<tabobjlinks.length; i++)
			tabobjlinks[i].className = ""
		
        aobject.className = "current"
		aobject.target    = "_self"
		document.getElementById("tabiframe").src = selectedtablink
		return false
	}
	return true
}

function baiduSt()
{
	var _bdhmProtocol = (("https:" == document.location.protocol) ? " https://" : " http://");
	document.write(unescape("%3Cscript src='" + _bdhmProtocol + "hm.baidu.com/h.js%3Fd424756f611fe9f9928d764569ab92cd' type='text/javascript'%3E%3C/script%3E"));
}