//歌曲选择
function selectall(pre,bid)
{
    var sel = true;
    if (bid)
    {
        if ($(bid).value=='全选')
        {
            $(bid).value='取消';
        }
        else
        {
            $(bid).value='全选';
            sel = false;
        }
    }
    var chkboxs = document.getElementsByTagName('input');
    for (var i = 0; i < chkboxs.length; i++)
    {
        var obj = chkboxs[i];
        if (obj.name !='chkAll')
        if ((obj.type == 'checkbox') && (obj.name.indexOf(pre) > -1))
        {
            obj.checked = sel;
        }
    }
}
//歌曲反选
function Checkback(pre)
{
    var chkboxs = document.getElementsByTagName('input');
    for (var i = 0; i < chkboxs.length; i++)
    {
        var obj = chkboxs[i];
        if (obj.name != 'chkBak')
        {
            if ((obj.type == 'checkbox') && (obj.name.indexOf(pre) > -1))
            {
                obj.checked = !(obj.checked);
            }
      }
    }
}
//选择播放
function playsel(pre)
{
    var idlist = '';
    var chkboxs = document.getElementsByTagName('input');
    for (var i = 0; i < chkboxs.length; i++)
    {
        var obj = chkboxs[i];
        if (obj.name !='chkAll')
        {
            if ((obj.type == 'checkbox') && (obj.name.indexOf(pre) > -1) && (obj.checked))
            {
                idlist += ',' + obj.value;
            }
        }
    }
    if (idlist.length < 1)
    {
        //alert('请选择要播放的歌曲');
        return false;
    }
    window.open('play.php?sid='+idlist.substring(1));
}
// 播放页面歌曲
function playpagesong()
{
    var chkboxs = document.getElementsByTagName('input');
    var idlist = '';
    var common = '';
    for (var i = 0; i < chkboxs.length; i++)
    {
        var obj = chkboxs[i];
        if (obj.name =='songid')
        {
            idlist += common+obj.value;
            common = ',';
        }
    }
    //alert(idlist);
    window.open('http://www.sgting.com/play.php?sid='+idlist);
}
function playtopnsong(songid)
{
    var chkboxs = document.getElementsByTagName('input');
    var idlist = '';
    var common = '';
    for (var i = 0; i < chkboxs.length; i++)
    {
        var obj = chkboxs[i];
        if (obj.name =='songid')
        {
            idlist += common+obj.value;
            common = ',';
        }
        if (obj.value == songid) break;
    }
    window.open('http://www.sgting.com/play.php?sid='+idlist);
}
function addFavorite()
{
   if (document.all)
   {
      window.external.addFavorite('http://www.sgting.com','思歌听网-原创新媒体音乐');
   }
   else if (window.sidebar)
   {
      window.sidebar.addPanel('思歌听网-原创新媒体音乐', 'http://www.sgting.com', "");
   }
   return false;
}
function addPageToFavorite()
{
    var aurl = window.location.href;
    var t = '思歌听音乐--' + document.title;
    AddFavorite(aurl, t);
    return false;
}
function AddFavorite(sURL, sTitle)
{
    try
    {
        window.external.addFavorite(sURL, sTitle);
    }
    catch (e)
    {
        try
        {
            window.sidebar.addPanel(sTitle, sURL, "");
        }
        catch (e)
        {
            alert("加入收藏失败，请使用Ctrl+D进行添加");
        }
    }
}
function SetHome(obj,vrl)
{
    try{
        obj.style.behavior='url(#default#homepage)';obj.setHomePage(vrl);
    }
    catch(e){
        if(window.netscape) {
            try {
                netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
            }
            catch (e) {
                alert("此操作被浏览器拒绝！请选中您要复制的文本，然后在选中区域单击右键选择复制。");
            }
            var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces.nsIPrefBranch);
            prefs.setCharPref('browser.startup.homepage',vrl);
         }
    }
}
function isEmail(mail){
	return(new RegExp(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/).test(mail));
}
function copyToClipboard(id)
{
    var txt = $(id).innerText;
    if (copy2Clipboard(txt) != false)
    {
        alert("复制成功，您可以使用Ctrl+V 贴到需要的地方去了哦！ ");
    }
    else
    {
        $(id).select();
    }
}
function copy2Clipboard(txt)
{
    if(window.clipboardData)
    {
        window.clipboardData.clearData();
        window.clipboardData.setData("Text", txt);
    }
    else if(navigator.userAgent.indexOf("Opera")!=-1)
    {
        window.location=txt;
    }
    else if(window.netscape)
    {
        try{
            netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
        }
        catch(e){
            alert("此操作被浏览器拒绝！请选中您要复制的文本，然后在选中区域单击右键选择复制。");
            return false;
        }
    }
}