function stopError() {
return true;} 
window.onerror = stopError; 

function Search_check()
{
  if (document.form.keyword.value=="")
  {
    alert("请输入搜索关键字 ！");
    document.form.keyword.focus();
    return false;
  }
}

function getCookie(name){
  var strCookies = document.cookie;
  var cookieName = name + "=";
  var valueBegin, valueEnd, value;
  valueBegin = strCookies.indexOf(cookieName);
  if (valueBegin == -1) return null;
  valueEnd = strCookies.indexOf(";", valueBegin);
  if (valueEnd == -1)
      valueEnd = strCookies.length;
  value = strCookies.substring(valueBegin+cookieName.length,valueEnd);
  return value;
}


function checkCookieExist(name){
  if (getCookie(name))
      return true;
  else
      return false;
}


function checkCookieExist(name){
  if (getCookie(name))
      return true;
  else
      return false;
}



function CheckLogin(){
	if (document.all.UserLogin.UserName.value=="" || document.all.UserLogin.PassWord.value==""){
		alert('无法确定帐号和密码');
		return false;
	}
	else{
		return true;
	}
}


function CheckCoo2(){
	var rehh=checkCookieExist('UserName');
	if (rehh){
		return true;
	}else{
		return false;
	}
}

function CheckCooF(obj){
	var rehh=checkCookieExist('UserName');
	if (rehh){
		obj.B1.disabled=true;
		return true;
	}else{
		alert('只有登入帐号后才能使用\n如果没有帐号，立即注册一个');
		window.open('../user/UserReg.asp','EditeUserInfor','left=300,top=200,width=300,height=350,resizable=1,scrollbars=0');
		return false;
	}
}


function ranArray(n)
{
        var a,r,l=n.length,x,d=new Array(l);
        for(x=l-1;x>=0;x--)
        {
                r=Math.floor(Math.random()*(x+1));
                d[x]=n[r];
                n[r]=n[x];
        }
        return d;
}
function SelectRandAll(form){
	var k=[];
	for(var i=0;i<form.songid.length;i++){
		var e = form.songid[i];
		e.checked = false;
		k[i]=i;
	}
	var newform=ranArray(k);
	var l=[];
	for (var i=0;i<newform.length && i<form.songid.length/2;i++){
		l[i]=newform[i];
		var e = form.songid[newform[i]];
		e.checked = true;
	}
eval("document.lbplay.submit();");
}

function Listen1(ListenURL)
		{
		var Listen = window.open(ListenURL,"Liste0n1","scrollbars=no,width=468,height=120,top=0,left=0");
		return false;
		}
		
		function lbsong()
{
window.open("","Listen","");
}

function CheckOthers(form)
{
	for (var i=0;i<form.elements.length;i++)
	{
		var e = form.elements[i];
//		if (e.name != 'chkall')
			if (e.checked==false)
			{
				e.checked = true;// form.chkall.checked;
			}
			else
			{
				e.checked = false;
			}
	}
}

function CheckAll(form)
{
	for (var i=0;i<form.elements.length;i++)
	{
		var e = form.elements[i];
//		if (e.name != 'chkall')
			e.checked = true// form.chkall.checked;
	}
}