function filesize (url) {
// Get file size
//
// version: 1102.614
// discuss at: http://phpjs.org/functions/filesize // + original by: Enrique Gonzalez
// + input by: Jani Hartikainen
// + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + improved by: T. Wild
// % note 1: This function uses XmlHttpRequest and cannot retrieve resource from different domain. // % note 1: Synchronous so may lock up browser, mainly here for study purposes.
// * example 1: filesize('http://kevin.vanzonneveld.net/pj_test_supportfile_1.htm');
// * returns 1: '3'
var req = this.window.ActiveXObject ? new ActiveXObject("Microsoft.XMLHTTP") : new XMLHttpRequest();
if (!req) { throw new Error('XMLHttpRequest not supported');
}
req.open('HEAD', url, false);
req.send(null);
if (!req.getResponseHeader) {
try {
throw new Error('No getResponseHeader!');
} catch (e) { return false;
}
} else if (!req.getResponseHeader('Content-Length')) {
try {
throw new Error('No Content-Length!'); } catch (e2) {
return false;
}
} else {
return req.getResponseHeader('Content-Length'); }
}
function fileID(a)
{
if (filesize(a)<1000)
{var fsize=("("+parseInt(fsize)+" bites)")}
else if (filesize(a)<1000000)
{
var fsize=("("+parseInt(filesize(a)/1000)+" kb)")
}
else
{
var fsize=("("+parseInt(filesize(a)/1000000)+" mb)")
}
if (FILE_NAME.match("mp3"))
{
document.write(''+FILE_TITLE+' '+fsize+':')
}
else
{
document.write(''+FILE_TITLE+' '+fsize+'');
}
}