//利用正则表达式检测字符串
function Check(reg, str)
{
 if( reg.test( str ) )
 {
    return true;
 }
 else
 {
    return false;
 }
}
//检测会员帐号
function CheckUserAccount(str)
{
  var reg=/[a-zA-Z-_0-9]{3,15}/;
  return Check( reg, str );
}
function CheckUserAccountReg(str)
{
  var reg=/^[a-zA-Z-_0-9]{3,15}$/;
  return Check( reg, str );
}
//检测会员密码
function CheckUserPwd(str)
{
  var reg=/[a-zA-Z-_0-9]{6,12}/;
  return Check( reg, str );
}
//检测验证码
function CheckValiCode(str)
{
  var reg=/\d{4}/;
  return Check( reg, str );
}
// 检测是否包含电话号码
function CheckIncludeTel( str )
{
 var reg = /(([0-9]|[０-９]|[零,一,二,三,四,五,六,七,八,九])\W*){7,}/;
 return Check( reg, str );
}
function ChangeNum(str)
{
  var restr = str;
  restr = restr.replace("０","0");
  restr = restr.replace("１","1");
  restr = restr.replace("２","2");
  restr = restr.replace("３","3");
  restr = restr.replace("４","4");
  restr = restr.replace("５","5");
  restr = restr.replace("６","6");
  restr = restr.replace("７","7");
  restr = restr.replace("８","8");
  restr = restr.replace("９","9");
  return restr;
 }
// 检测Email
function CheckEmail( str )
{
 var reg = /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/;
 return Check( reg, str );
}
// 检测数字
function CheckNum( str )
{
 var reg = /^\d*$/;
 return Check( reg, str );
}
// 检测money
function CheckMoneyNum( str )
{
 var reg = /^[\d|\.]*$/;
 return Check( reg, str );
}
//检测Date类型
function CheckDate(str)
{
  var reg=/\d{4}[-]\d{0,2}[-]\d{0,2}/;
  return Check( reg, str );
}
//去左空格
function ltrim(s){ 
return s.replace( /^\s*/, ""); 
} 
//去右空格; 
function rtrim(s){ 
return s.replace( /\s*$/, ""); 
} 
//去左右空格; 
function trim(s){ 
return rtrim(ltrim(s)); 
}
//检测电话类型
function CheckTel(str)
{
  var reg=/(^(0\d{2,3})?(-|\s)?(\d{7,8})(-(\d{2,4}))?$)|(^(\+86)?(\s+)?((13)|(15))(\d{9})$)/
  return Check( reg, str );
}
//检测控件的值是否为空
function CheckNull(Ctl,msg)
{
    if (Ctl.value=="")
    {
        alert(msg);
        Ctl.focus();
        return false;
    }
    return true;
}
function showInfo(layer)
{
	layer.style.display="";
	layer.style.top = event.clientY+document.body.scrollTop+10;
	layer.style.left = event.clientX+document.body.scrollLeft+15;
	status = event.screenX + " " + event.screenY;
}
function hiddenInfo(layer)
{
	layer.style.display="none";
}
//利用XmlHttp装载指定页面的数据
function  loadXml(file)
{
	var xmlObj = null;
	if(window.XMLHttpRequest)
	{ 
		xmlObj = new XMLHttpRequest();
	}
	else if(window.ActiveXObject)
	{
		xmlObj = new ActiveXObject("Microsoft.XMLHTTP");
	}
	else
	{
		return;
	}
	xmlObj.onreadystatechange = function ()
	{
		if(xmlObj.readyState == "4")
		{
			processXML(xmlObj.responseText);
		}
	} 
	xmlObj.open("post",file,true);
	xmlObj.send("");
}
/*-------- common javascript functions -------------*/
function getCookieVal (offset)
{
    var endstr = document.cookie.indexOf (";", offset);
    if (endstr == -1)
      endstr = document.cookie.length;
    return unescape(document.cookie.substring(offset, endstr));
}

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;
}

function SetCookie (name, value)
{
    var argv = SetCookie.arguments;
    var argc = SetCookie.arguments.length;
    var expires = (argc > 2) ? argv[2] : new Date();
    var path = (argc > 3) ? argv[3] : "/";
    var domain = (argc > 4) ? argv[4] : "localhost";
    var secure = (argc > 5) ? argv[5] : false;
   // document.cookie = name + "=" + escape (value) + expires.toGMTString() + "; path=" + path + "; domain=" + domain ;
	  document.cookie = name + "=" + value + ";path=/";
}
function DelCookie(name)//删除Cookie
{
var exp = new Date();
exp.setTime (exp.getTime() - 1);
var cval = GetCookie (name);
document.cookie = name + "=" + cval + "; expires="+ exp.toGMTString();
}