// add a CSS indicator for advanced Javascript support
$(document.body).addClass("js-enabled");

// add Safari-specific style sheet
if(window.webkit)
{
    document.write('<link rel="stylesheet" type="text/css" href="/css/webkit.css" />');
}

// add Mozilla-specific style sheet
else if(window.gecko)
{
    document.write('<link rel="stylesheet" type="text/css" href="/css/gecko.css" />');
}

// add search field focus and blur handlers
window.addEvent("domready", function()
{
	$$(".search_field").each(function(field)
	{
		var defaultValue = field.value;
		
		field.onfocus = function()
		{
			field.value = (field.value == defaultValue) ?
				"" : field.value;
		};

		field.onblur = function()
		{
			field.value = (field.value == "") ? defaultValue :
				field.value;
		};
	});
});