String.prototype.trim = function()
{
    return this.replace(/(^\s*)|(\s*$)/g, "");
}

String.prototype.len=function()
{
    return this.replace(/[^\x00-\xff]/g,'aa').length;
} 

function StringBuilder(value)
{
	this.strings = new Array("");
	this.append(value);
}

// Appends the given value to the end of this instance.
StringBuilder.prototype.append = function (value)
{
	if (value)
	{
		this.strings.push(value);
	}
}

// Clears the string buffer
StringBuilder.prototype.clear = function ()
{
	this.strings.length = 1;
}

// Converts this instance to a String.
StringBuilder.prototype.toString = function ()
{
	return this.strings.join("");
}

function subString(str, len, ignoreDot)
{
	var newLength = 0;
	var newStr = "";
	var chineseRegex = /[^\x00-\xff]/g;
	var singleChar = "";
	var strLength = str.replace(chineseRegex,"**").length;
	for(var i = 0;i < strLength;i++)
	{
        singleChar = str.charAt(i).toString();
		if(singleChar.match(chineseRegex) != null)
		{
			newLength += 2;
		}	
		else
		{
			newLength++;
		}
		if(newLength > len)
		{
			break;
		}
		newStr += singleChar;
	}
	
	if(ignoreDot && strLength > len)
	{
	    newStr += "...";
	}
	return newStr;
}

function $(objName)
{
   
   if(document.getElementById)
   {
       return document.getElementById(objName );
   }
   else if(document.layers)
   {
       return eval("document.layers['" + objName +"']");
   }
   else
   {
       return eval('document.all.' + objName);
   }
}

function go_Search()
{
	window.open("http://sosu.cmfu.com/genius/Result.aspx?k="+ escape(document.all("k").value) +"&t="+document.all("t").value);
	return false;
}

//function TabSearch()
//{
//  if(event.keyCode == 13)
// { 
//  go ();
// } 
//}
//function opwin(keywords,type){ window.open("http://sosu.qidian.com/search.aspx?k="+keywords+"&t="+type); }
//function go(){
//        var key =  $("txtwords").value;
//        key = key.replace("请输入",""); 
//        var index = $("searchtype").selectedIndex;
//        var type= $("searchtype").options[index].value;        
//        if(key == null || key.length==0)
//        {
//           alert("请输入搜索关键字");
//           return false;
//        }
//	     else if(type.indexOf('ft') != -1 && key.length < 2) 
//	     {
//	       alert("请输入2个或以上字符");
//	       return;
//	     } 
//	     key = key.replace(/</g, "");
//	     key = key.replace(/>/g, "");  
//        opwin(key,type);
//}

function checkLoginByCookie()
{
    var cookieId="AUTHTEST";
    if(window.location.href.toLowerCase().indexOf("qidian.com") > -1)
    {
        cookieId="cmfuToken";
    }

    if((GetCookie(cookieId)!=null && GetCookie(cookieId).length > 0 ))
    {
        return true;
    }
    else
    {
        if(GetCookie('cmfu_al') != null && GetCookie('cmfu_al').length > 0)
        {
            return true;
        }
    }
    return false;
}

function GetCookie(cookieName) 
{
    var cookieString = document.cookie;
    
    var start = cookieString.indexOf(cookieName + '=');
	
	

    // 加上等号的原因是避免在某些 Cookie 的值里有

    // 与 cookieName 一样的字符串。

	
    if (start == -1) // 找不到

    return null;

    start += cookieName.length + 1;
    var end = cookieString.indexOf(';', start);
    if (end == -1) return unescape(cookieString.substring(start));
    return unescape(cookieString.substring(start, end));
}
function  getUrlParam(name)
{   
    var reg = new RegExp("(^|&)"+ name +"=([^&]*)(&|$)","i");   
    var r = window.location.search.substr(1).match(reg);   
    if (r!=null)  
    {
        return   unescape(r[2]);
    }
    else
    {  
        return   null;   
    }
}

//切换Tab
//function switchTab(divName, divTag, divID)
//{
//    if(divID==1){
//        document.getElementById(divName+"1").style.display="";
//        document.getElementById(divName+"2").style.display="none";
//        MM_showHideLayers(divTag + "B",'','show');
//        MM_showHideLayers(divTag + "A",'','hide');
//    }
//    else{
//        document.getElementById(divName+"2").style.display="";
//        document.getElementById(divName+"1").style.display="none";
//        MM_showHideLayers(divTag + "A",'','show');
//        MM_showHideLayers(divTag + "B",'','hide'); 
//    }    
//}

function MM_showHideLayers() { //v9.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) 
  with (document) if (getElementById && ((obj=getElementById(args[i]))!=null)) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}