/**
 * function to change text size using jQuery
 */ 
function changeTextSize(dir, el)
{
	var text = $(el);
	var curr = text.css('font-size');
	var num = parseFloat(curr, 10);

	if (changeTextSize.original == null) {
		changeTextSize.original = num;
	}
	
	// em, px, whatever
	var unit = curr.slice(-2);

	switch (dir) {
		case 'smaller':
			num = num / 1.2;
			break;
	
		case 'larger':
			num = num * 1.2;
			break;

		case 'reset':
			num = changeTextSize.original;
			$('#zoom-reset').css('display', 'none');
			break;
	}

	if ((dir == 'smaller' || dir == 'larger' ) && $('#zoom-reset') != null) {
		$('#zoom-reset').css('display', 'inline');
	}
	
	text.css('font-size', num + unit);
}


function search_box(el, def)
{
	if ($(el).val() == def) {
		$(el).val('');
	} else {
		$(el).select();
	}
}