// JScript File

	function checkTopSearch() {
		var searchString = document.topSearch.searchbox.value;
			
		// display alert if no channel or keyword specified
		if (searchString == 'Your word(s) here' || searchString == '') {
			alert ('Please enter a word or phrase to search for.')
			return false;
		}
		// alter form and redirect to results page
		//SRH - Change target of results to be the same page rather than opening a new window
		window.open('http://gas001.guk.org.uk/search?q=' + searchString + '&btnG.x=36&btnG.y=2&btnG=Google+Search&entqr=0&ud=1&sort=date%3AD%3AL%3Ad1&output=xml_no_dtd&oe=UTF-8&ie=UTF-8&client=default_frontend&proxystylesheet=gg_frontend&site=default_collection','_self');
		return false;
	}