/* Created by Martin Hintzmann 2008 martin [a] hintzmann.dk
 * MIT (http://www.opensource.org/licenses/mit-license.php) licensed.
 *
 * Version: 0.1
 *
 * Requires:
 *   jQuery 1.2+
 *
 * Adapted by:	Jasper Rijkeboer
 * Changes:
 *	+ added id = (parent)_boxShadow
 *	+ added removeboxShadow() function 
 
 
 */
(function($) {
	$.fn.addBoxShadow = function(xOffset, yOffset, blurRadius, shadowColor) {
		if (!$.browser.msie) return;
		return this.each(function(){
			$(this).css({
				position:	"relative",
				zoom: 		1,
				zIndex:		"2"
			});
			$(this).parent().css({
					position:	"relative"
			});
			
			var div=document.createElement("div");
			div.id = $(this).context.id+"_boxShadow";
			$(this).parent().append(div);

			var _top, _left, _width, _height;
			if (blurRadius != 0) {
				$(div).css("filter", "progid:DXImageTransform.Microsoft.Blur(pixelRadius="+(blurRadius)+", enabled='true')");
				_top = 		yOffset-blurRadius-1;
				_left =		xOffset-blurRadius-1;
				_width =		$(this).outerWidth()+1;
				_height =	$(this).outerHeight()+1;
			} else {
				_top = 		yOffset;
				_left =		xOffset;
				_width = 	$(this).outerWidth();
				_height = 	$(this).outerHeight();
			}
			$(div).css({
				top: 			_top,
				left:			_left,
				width:		_width,
				height:		_height,
				background:	shadowColor,
				position:	"absolute",
				zIndex:		1
			});
			
	  });
	};

	$.fn.removeboxShadow = function()
	{
		if (!$.browser.msie) return;
		return this.each(function()
		{
			var parentid = "#"+$(this).context.id+"_boxShadow";
			 $(parentid).remove();
		});
	};


	// copright TonyLara.net
	jQuery.fn.center = function () {
	    this.css("position","absolute");
	    this.css("top", ( $(window).height() - this.height() ) / 2+$(window).scrollTop() + "px");
	    this.css("left", ( $(window).width() - this.width() ) / 2+$(window).scrollLeft() + "px");
	    return this;
	}
	
})(jQuery);