var originalKeywords;

$(document).ready(function(){
	originalKeywords = $("#keywords").val();
});

function search() {
	var keywords = $("#keywords").val();

//	if (keywords.length < 2) {
//		return false;
//	}

	if (keywords != originalKeywords) {
		// disable semester refinements
		$.each($("select[id!=filter]"), function(i, val){ val.disabled = true; });
	}
}