$(document).ready(function() {
	//hide publications search text when clicked and show again when defocussed
	$('#searchstring').focus(function(){
		if($('#searchstring').val() == 'Enter search term'){
			$('#searchstring').val('');
		}
	});
	$('#searchstring').blur(function(){
		if($('#searchstring').val() == ''){
			$('#searchstring').val('Enter search term');
		}
	});
});