function subform(e)
{
	var keynum;
	var keychar;

	if(window.event) // IE
	{
		keynum = e.keyCode
	}
	else if(e.which) // Netscape/Firefox/Opera
	{
		keynum = e.which
	}
	if (keynum == '13') {
		document.search_form.submit();
	}
}