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 copy(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;
}