<!--
	function submitonce(load_wall) {
		if (document.all || document.getElementById) {
			for (i = 0; i < load_wall.length; i++) {
				var object = load_wall.elements[i];
				if (object.type.toLowerCase() == 'button') {
					object.disabled = true;
					object.value = 'Uploading...';
				}
			}
			load_wall.submit();
		}
	}
	
	function validate(load_wall) {
		if (document.all || document.getElementById) {
			for (i = 0; i < load_wall.length; i++) {
				var object = load_wall.elements[i];
				if (object.type == 'file') {
					if (object.value.toString()) {
						submitonce(load_wall);
					}
					else {
						alert ('Please select your file before clicking the upload button!');
					}
				}
			}
		}
	}
-->