// 检查特殊字符
function isSpecial(txt)
{
    var reg = /([~!@#$%&*()`=+,.?<>-]|\\|\/)/;
    str=trim(txt);
	if(!reg.test(txt))
		return false;
    
	return true;
}

//去掉左右空格
function trim(txt)
{
    txt = txt.replace(/　/g,"");
    return txt.replace(/(^\s*)|(\s*$)/g, "");
}

//检查是否为空
function isEmpty(txt)
{
   if(trim(txt)=="") return true;
   return false;
}

//检查手机号码格式
function isPhone(txt)
{
    var reg=/(^\s*)(((\(\d{3}\))|(\d{3}\-))?13\d{9}|15\d{9}|189\d{8})(\s*$)/;
    if(!reg.test(txt)) return false;
   
    return true;
}

//检查邮政编码格式
function isPostCode(txt)
{
    var reg=/(^\s*)\d{6}(\s*$)/;
    if(!reg.test(txt)) return false;
   
    return true;
}

//检查邮箱地址格式
function isEmail(txt)
{
    var reg=/(^\s*)\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*(\s*$)/;
    if(!reg.test(txt)) return false;
   
    return true;
}

//检查QQ格式
function isQQ(txt)
{
    var reg=/(^\s*)\d{5,10}(\s*$)/;
    if(!reg.test(txt)) return false;
   
    return true;
}


//提示信息
function showAlert(msg, obj, infoNode){
    if(G(infoNode) != null){
        G(infoNode).innerHTML = msg;
        return;
    }
    
    var newnode = document.createElement("span");
    newnode.id = infoNode;
    newnode.className = "alertInfo";
    newnode.innerHTML = msg;
    obj.appendChild(newnode);
}

//删除提示信息
function removeAlert(infoNode){
    if(G(infoNode) == null) return;
    G(infoNode).parentNode.removeChild(G(infoNode));
}

//显示等待信息
function showWaitInfo(msg, obj){
    if(obj == null) return;
    clearWaitInfo();
    var newnode = document.createElement("span");
    newnode.id = "waitInfo";
    newnode.innerHTML = msg;
    obj.parentNode.appendChild(newnode);
}

function clearWaitInfo()
{
    removeAlert("waitInfo");
}

var G = function(objId){return document.getElementById(objId);}


/******************************* Cookie 操作 ****************************************/
//删除名称为name的Cookie
function DeleteCookie (name)    
{      
    var exp = new Date();   
    exp.setTime (exp.getTime() - 1);   
    var cval = GetCookie (name);   
    document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();   
}   
    
//清除COOKIE
function ClearCookies()   
{
    var temp=document.cookie.split(";");   
    var ts;   
    for (var i=0;;i++)   
    {   
        if(!temp[i])break;   
       ts=temp[i].split("=")[0];   
       DeleteCookie(ts);   
    }
}   
//取得项名称为offset的cookie值
function GetCookieVal (offset)   
{   
    var endstr = document.cookie.indexOf (";", offset);
    if (endstr == -1)
    endstr = document.cookie.length;
    return unescape(document.cookie.substring(offset, endstr));
}   
    
//取得名称为name的cookie值
function GetCookie (name) {   
    var arg = name + "=";
    var alen = arg.length;
    var clen = document.cookie.length;
    var i = 0;
    while (i < clen)   
    {
       var j = i + alen;   
       if (document.cookie.substring(i, j) == arg)   
            return GetCookieVal (j);   
       i = document.cookie.indexOf(" ", i) + 1;   
       if (i == 0) break;   
    }
    return null;
}

//设置Cookie
function SetCookie(name, value, days) 
{ 
    var expires = new Date(); 
    expires.setTime(expires.getTime() + (1000 * 86400 * days)); 
    document.cookie = name + "=" + escape(value) + "; expires=" + expires.toGMTString() + "; path=/"; 
}
/******************************* Cookie 操作 ****************************************/