function echeckAll(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 ed2kcopy(str) {
var a = document.getElementsByName(str);
var n = a.length;
var ed2kcopy = document.getElementById("ed2kcopy_"+str)
ed2kcopy.innerHTML = ""
for (var i = 0; i < n; i++) {
if(a[i].checked)
{
ed2kcopy.innerHTML += a[i].value;
ed2kcopy.innerHTML += "<br />";
}
}
var rng = document.body.createTextRange();
rng.moveToElementText(ed2kcopy)
rng.scrollIntoView();
rng.select();
rng.execCommand("Copy");
rng.collapse(false);
}

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, 2);
} 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;
}