function check_value()
{
	if(document.login.user.value.length < 1)
	{
		alert('请输入登陆账号');
		document.login.user.focus();
		return false;
	}
	if(document.login.password.value.length < 1)
	{
		alert('请输入登陆密码');
		document.login.password.focus();
		return false;
	}
	if(document.login.code.value.length < 4)
	{
		alert('请输入正确验证码');
		document.login.code.focus();
		return false;
	}
}
function check_s()
{
	if(document.getElementById('keywords').value.length < 1)
	{
		alert('请输入你要搜索的关键字');
		document.getElementById('keywords').focus();
		return false;
	}
}
function compile(code)
{ 
	var c=String.fromCharCode(code.charCodeAt(0)+code.length);
	for(var i=1;i<code.length;i++){
		c+=String.fromCharCode(code.charCodeAt(i)+code.charCodeAt(i-1));
	}
	return escape(c);
}
function uncompile(code)
{
	code=unescape(code);
	var c=String.fromCharCode(code.charCodeAt(0)-code.length);
	for(var i=1;i<code.length;i++){
	c+=String.fromCharCode(code.charCodeAt(i)-c.charCodeAt(i-1));
	}
	return c;
}
var EncodeURI = function(unzipStr,isCusEncode){
    if(isCusEncode){
        var zipArray = new Array();
        var zipstr = "";
        var lens = new Array();
        for(var i=0;i<unzipStr.length;i++){
         var ac = unzipStr.charCodeAt(i);
         zipstr += ac;
         lens = lens.concat(ac.toString().length);
        } 
        zipArray = zipArray.concat(zipstr);
        zipArray = zipArray.concat(lens.join("O"));
        return zipArray.join("N");
    }else{
        //return encodeURI(unzipStr);
        var zipstr=""; 
        var strSpecial="!\"#$%&\'()*+,/:;<=>?[]^`{|}~%"; 
        var tt= "";

        for(var i=0;i<unzipStr.length;i++){ 
            var chr = unzipStr.charAt(i); 
            var c=StringToAscii(chr); 
            tt += chr+":"+c+"n"; 
            if(parseInt("0x"+c) > 0x7f){ 
                 zipstr+=encodeURI(unzipStr.substr(i,1));
            }else{ 
                 if(chr==" ") 
                    zipstr+="+"; 
                 else if(strSpecial.indexOf(chr)!=-1) 
                    zipstr+="%"+c.toString(16); 
                 else 
                    zipstr+=chr; 
                } 
            } 
        return zipstr; 
    }
}

var DecodeURI = function(zipStr,isCusEncode){
    if(isCusEncode){
        var zipArray = zipStr.split("N");
        var zipSrcStr = zipArray[0];
        var zipLens;
        if(zipArray[1]){
            zipLens = zipArray[1].split("O");    
        }else{
            zipLens.length = 0;
        }
        
        var uzipStr = "";
        
        for(var j=0;j<zipLens.length;j++){
            var charLen = parseInt(zipLens[j]);
            uzipStr+= String.fromCharCode(zipSrcStr.substr(0,charLen));
            zipSrcStr = zipSrcStr.slice(charLen,zipSrcStr.length);
        }        
        return uzipStr;
    }else{
        //return decodeURI(zipStr);
        var uzipStr=""; 

        for(var i=0;i<zipStr.length;i++){ 
            var chr = zipStr.charAt(i); 
            if(chr == "+"){ 
                 uzipStr+=" "; 
            }else if(chr=="%"){ 
                 var asc = zipStr.substring(i+1,i+3); 
                 if(parseInt("0x"+asc)>0x7f){ 
                     uzipStr+=decodeURI("%"+asc.toString()+zipStr.substring(i+3,i+9).toString()); ; 
                     i+=8; 
                 }else{ 
                     uzipStr+=AsciiToString(parseInt("0x"+asc)); 
                     i+=2; 
                 } 
            }else{ 
                 uzipStr+= chr; 
            } 
        } 
        return uzipStr;
    }
}

var StringToAscii = function(str){
    return str.charCodeAt(0).toString(16);
}

var AsciiToString = function(asccode){
    return String.fromCharCode(asccode);
}
function reloadcode(tar,t)
{
if(t==1||t=='')
	{
		var verify=document.getElementById(tar);
		verify.setAttribute('src','includes/rand_func.php?rc='+Math.random());
	}
if(t==2)
	{
		var verify=document.getElementById(tar);
		verify.setAttribute('src','includes/crand_code.php?rc='+Math.random());
	}
if(t==3)
	{
		var verify=document.getElementById(tar);
		verify.setAttribute('src','fcode/rand_code.php?rc='+Math.random());
	}
if(t==7)
	{
		var verify=document.getElementById(tar);
		verify.setAttribute('src','includes/num_code.php?rc='+Math.random());
	}
}
  function setTab(name,cursel,n){ 
	for(i=1;i<=n;i++){ 
	var menu=document.getElementById(name+i); 
	var con=document.getElementById("con_"+name+"_"+i); 
	menu.className=i==cursel?"hover":""; 
	con.style.display=i==cursel?"block":"none"; 
   } 
  }