function Change()
{
	var upload = document.getElementById('upload');
	var button = document.getElementById('button');
	var resize = document.getElementById('resize');

	button.disabled = true;
	resize.disabled = true;
	resize.selectedIndex = 0;

	if (upload.value == '')
		return;

	var dot = upload.value.lastIndexOf('.');

	if (dot == -1)
	{
		upload.value = '';
		return;
	}

	var ext = upload.value.substr(dot, upload.value.length).toLowerCase();

	switch (ext)
	{
		case '.jpg':
		case '.jpeg':
			button.disabled = false;
			resize.disabled = false;
			break;
		case '.bmp':
		case '.png':
		case '.gif':
			button.disabled = false;
			break;
		default:
			upload.value = '';
			break;
	}
}

function Send()
{
	document.getElementById('button').style.display = 'none';
	document.getElementById('loading').style.display = 'inline';
	
	var form = document.getElementById('form');
	form.submit();
}

function Select(e)
{
	e.select();
}

function New()
{
	window.location.href = Base;
}