nv_search = function(){
	
	SEARCH_URL = "/net/catalogue/search.aspx";
	QUERY = "q";
	
	var init = function(){
		$("#site_header_search").each(setup);
	}
	
	var setup = function(){
		var _submit = $(".search_button", this);
		var _query = $(".search_field", this);
		
		_submit.data("query", _query);
		_query.data("query", _query);
		
		_query.bind("keydown", keydown);
		_submit.bind("click", submitSearch);
		
		if(request.QueryString[QUERY]){
			_query.attr("value", request.QueryString[QUERY]);
		}
	}
	
	var keydown = function(evt){
		if(evt.keyCode == 13){
			submitSearch(evt);
			return false;
		}
	}
	
	var submitSearch = function(evt){
		var _query = $(evt.target).data("query");
		var q = _query.attr("value");
		if(q == _query.attr("initialvalue")){
			window.location = SEARCH_URL;
		}else{
			window.location = SEARCH_URL + "?" + QUERY + "=" + escape(q);
		}
		return false;
	}
	
	return {
	/* Public API
	*/
	init: init
	}	
	
}();