function CheckLogin()
{
	if(document.myLoginForm.UserName.value=="")
	{   
		alert("提示：登陆用户名必须填写！");
		document.myLoginForm.UserName.focus();
		return false;
	}
	if(document.myLoginForm.UserPasswd.value=="")
	{   
		alert("提示：请输入您的密码！"); 
		document.myLoginForm.UserPasswd.focus();  
		return false;
	}   
	return true;
}

function CheckSearch()
{
	if(document.SearchForm.SearchKey.value=="")
	{   
		alert("提示：请输入搜索条件！");
		document.SearchForm.SearchKey.focus();
		return false;
	}
	return true;
}

function checkPlData()
{
	if(document.pl_Form.pl_CommentContent.value=="")
	{
		alert("请输入评论内容！");
		return false;
	}
	if(!isAllowString(document.pl_Form.pl_zNum.value,"1234567890") || document.pl_Form.pl_zNum.value=="") 
	{ 
		alert("请正确填写问题答案，只能是数字！"); 
		return false; 
	} 
	return true;
}

function isAllowString(AStr, RefString)  
{  
	if(AStr.length==0) return (false);  
	for(var Count=0;Count<AStr.length;Count++)  
	{  
		TempChar= AStr.substring(Count,Count+1);  
		if (RefString.indexOf(TempChar,0)==-1) return (false);  
	}  
	return (true);  
} 

function SelSearch(obj, f)
{
	switch (obj)
	{
		case "iciba":
		$("SiteSearch").action = "iciba.php";setDownList=0;break;
		case "baidu":
		$("SiteSearch").action = "http://www.baidu.com/s";setDownList=0;break;
		case "google":
		$("SiteSearch").action = "http://www.google.com.hk/search";setDownList=0;break;
		case "popasp":
		$("SiteSearch").action = "search";setDownList=f;break;
		case "music":
		$("SiteSearch").action = "http://mp3.baidu.com/m";$("ct").value=134217728;setDownList=0;break;
	}
}

function SelUrl(obj)
{
	switch (obj)
	{
	case "webmasterhome":
	$("InfoSearch").action = "http://indexed.webmasterhome.cn/";
	break;
	case "chinaz":
	$("InfoSearch").action = "http://alexa.chinaz.com/Index.asp";
	break;
	case "chinarank":
	$("InfoSearch").action = "http://www.chinarank.org.cn/overview/Info.do";
	break;
	}
}

function SelInfo(obj)
{
	switch (obj)
	{
	case "ip138":
	$("InfoSYSearch").method = "get";
	$("InfoSYSearch").action = "http://www.ip138.com/ips.asp";
	break;
	case "imobile":
	$("InfoSYSearch").method = "get";
	$("InfoSYSearch").action = "http://www.imobile.com.cn/search.php";
	break;
	case "123cha":
	$("InfoSYSearch").method = "post";
	$("InfoSYSearch").action = "http://www.123cha.com/postal/index.php";
	break;
	}
}

function ljf_SetSF(sf_v){document.SiteSearch.sf[sf_v].checked=true;}

function getValue(){$("word").value = $("wd").value;$("q").value = $("wd").value;}

function getUrl(){$("url").value = $("domain").value;}

function getInfo(){$("searchkeyword").value = $("ip").value;$("query").value = $("ip").value;}

function setNull(obj){obj.select();}

function ljf_SetSF(sf_v){document.SiteSearch.sf[sf_v].checked=true;}

function SetFocus()
{
	if ($("wd").value=='')
	{
		$("wd").focus();
	}
	else
	{
		$("wd").select();
	}
}

//收录查询
function checkDomain()
{
	var enDomain = $("domain").value;
	var i;
	var j;
	var ii;
	var aa;
	if(enDomain=="" || enDomain==" " || enDomain.length < 4) {
		alert("请您输入有效的域名！");
		$("domain").focus();
		return false;
	}
  	
	var checkOK = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-0123456789|. ";
	var allValid = true;
	for (i = 0;  i < enDomain.length;  i++)
	{
		ch = enDomain.charAt(i);
		for (j = 0;  j < checkOK.length;  j++)
		if (ch == checkOK.charAt(j))
			break;
		if (j == checkOK.length)
		{
			allValid = false;
			break;
		}
	}
	
	if (!allValid){
		alert("请输入有效的域名或路径！");
		$("domain").focus();
		return (false);
	}
    if(enDomain.length>0)
	{
       ii=enDomain.indexOf(".")
        if(ii==-1)
		{
			alert("有效的域名或路径中必须含有“.”和域名后缀！")
			$("domain").focus();
			return false
        }
    }
	return true;	
}

//返回对象
var $=function(node)
{
	return document.getElementById(node);
}
var $$=function(node)
{
	return document.getElementsByTagName(node);
}

/*通用创建异步对象*/
function createXMLHttpRequest()
{
	if(window.ActiveXObject)
	{
		var ljfHttpObj = new ActiveXObject("Microsoft.XMLHTTP");
	}
	else if(window.XMLHttpRequest)
	{
		var ljfHttpObj = new XMLHttpRequest();
	}
	return ljfHttpObj;
}