function queryString(name) {
	hu = window.location.search.substring(1);
	r = '';
	if (hu!='') {
		gy = hu.split('&');
		for (i=0;i<gy.length;i++) {
			ft = gy[i].split('=');
			if (ft[0] == name) {
				r = ft[1];
			}
		}
		return r;
	} else {return '';}
}

$(document).ready(function() { 
	// activate tab
	switch(window.location.pathname.toString()) {
	case '/safety-products.aspx':
	  $('#nav1').addClass('active');
	  break;
	case '/brands/':
	  $('#nav2').addClass('active');
	  break;
	case '/safety-links.aspx':
	  $('#nav3').addClass('active');
	  break;
	case '/safety-terms.aspx':
	  $('#nav4').addClass('active');
	  break;
	case '/safety-videos.aspx':
	  $('#nav5').addClass('active');
	  break;
	}	

	// search form behavior
	$('#searchbtn').click(function() {
		if ($('#keyword').val()=='') {
			$('#keyword').addClass('highlight');
			$('#keyword').val('Enter Search Term');
			$('#keyword').click(function() {
				if ($('#keyword').val()=='Enter Search Term') {
					$('#keyword').val('');
				}
			});
			return false;
		} else {
			$('#keyword').removeClass('highlight');
			window.location = '/search.aspx?keyword='+escape($('#keyword').val());
			return false;
		}
	});
	
	//fill keyword
	if (queryString('keyword')!='') {
		$('#keyword').val(unescape(queryString('keyword')));
		$('input[name|=q]').val(unescape(queryString('keyword')));
	}
	
	$('#logo').click(function() {
		window.location = '/';					  
	});
});