function checkAll(str,checked)
{
	var a = document.getElementsByName(str);
	var n = a.length;

	for (var i = 0; i < n; i++)
		a[i].checked = checked;
	em_size(str);
}

function download(str, i, first)
{
	var a = document.getElementsByName(str);
	var n = a.length;

	for (var i = i; i < n; i++)
	{
		if(a[i].checked)
		{
			window.location=a[i].value;
			if (first)
			timeout = 6000;
			else
			timeout = 500;
			i++;
			window.setTimeout("download('"+str+"', "+i+", 0)", timeout);
			break;
		}
	}
}

function copy(str)
{
	var a = document.getElementsByName(str);
	var n = a.length;
	var ed2kcopy = "";
	for (var i = 0; i < n; i++)
	{
		if(a[i].checked)
		{
			ed2kcopy += a[i].value;
			ed2kcopy += "\r\n";
		}
	}
	copyToClipboard(ed2kcopy);
}

function copyToClipboard(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("被浏览器拒绝！\n请在浏览器地址栏输入'about:config'并回车\n然后将'signed.applets.codebase_principal_support'设置为'true'");
		}
		var clip = Components.classes['@mozilla.org/widget/clipboard;1'].createInstance(Components.interfaces.nsIClipboard);
		if (!clip)
			return;
		var trans = Components.classes['@mozilla.org/widget/transferable;1'].createInstance(Components.interfaces.nsITransferable);
		if (!trans)
			return;
		trans.addDataFlavor('text/unicode');
		var str = new Object();
		var len = new Object();
		var str = Components.classes["@mozilla.org/supports-string;1"].createInstance(Components.interfaces.nsISupportsString);
		var copytext = txt;
		str.data = copytext;
		trans.setTransferData("text/unicode",str,copytext.length*2);
		var clipid = Components.interfaces.nsIClipboard;
		if (!clip)
			return false;
		clip.setData(trans,null,clipid.kGlobalClipboard);
	}
}

function em_size(str)
{
	var a = document.getElementsByName(str);
	var n = a.length;
	try
	{
		var input_checkall = document.getElementById("checkall_"+str);
		var size = 0;
		input_checkall.checked = true ;
		for (var i=0; i < n; i++)
		{
			if (a[i].checked)
			{
				var piecesArray = a[i].value.split( "|" );
				size += piecesArray[3]*1;
			}
			else
				input_checkall.checked = false;
		}
		test = document.getElementById("size_"+str);
		test.innerHTML = gen_size(size, 3, 1);
	}catch (e) { }
}

function gen_size(val, li, sepa )
{
	sep = Math.pow(10, sepa); //小数点后的位数
	li = Math.pow(10, li); //开始截断的长度
	retval  = val;
	unit    = 'Bytes';
	if (val >= li*1000000000)
	{
		val = Math.round( val / (1099511627776/sep) ) / sep;
		unit  = 'TB';
	} else if (val >= li*1000000) {
		val = Math.round( val / (1073741824/sep) ) / sep;
		unit  = 'GB';
	} else if (val >= li*1000) {
		val = Math.round( val / (1048576/sep) ) / sep;
		unit  = 'MB';
	} else if (val >= li) {
		val = Math.round( val / (1024/sep) ) / sep;
		unit  = 'KB';
	}
	return val + unit;
}