//extArray = new Array(".gif", ".jpg", ".png", ".pdf", ".flv", ".wmv", ".mp4", ".mov", ".avi", ".mpg");

function LimitAttach(extArray, form, file) {
	allowSubmit = false;
	if (!file) return false;
	while (file.indexOf("\\") != -1)
		file = file.slice(file.indexOf("\\") + 1);
		ext = file.slice(file.indexOf(".")).toLowerCase();
		for (var i = 0; i < extArray.length; i++) {
			if (extArray[i] == ext) { allowSubmit = true; break; }
		}
		if (allowSubmit) form.submit();
		else
			alert("Please only upload files that end in types:  "
					+ (extArray.join("  ")) + "\nPlease select a new "
					+ "file to upload and submit again.");
}