function textLimit(field, maxlen) {
	if (field.val().length > maxlen) {
		var scroll =field.scrollTop();
		field.val(field.val().substring(0, maxlen));
		field.scrollTop(scroll);
	}
}
function trimwhitespace(elementId) {
	var text;
	text = $("#" + elementId.replace(".","\\."));
	text.val(text.val().replace(/^\s|\s*$/g, "").replace(/\s+/g, " "));
}