/**
 * --------------------------------------------------------------------
 * $-Plugin "pngFix"
 * Version: 1.1.1, 11.09.2007
 * by Andreas Eberhard, andreas.eberhard@gmail.com
 *                      http://jquery.andreaseberhard.de/
 *
 * Copyright (c) 2007 Andreas Eberhard
 * Licensed under GPL (http://www.opensource.org/licenses/gpl-license.php)
 *
 * modified by Ronnie
 * changelog:
 * 1.only change the background image of the elements
 * 2.can set the selector
 * 
 * @example $('.dialog table').pngFix('td');
 * @desc only change the td's background 
 *
 * --------------------------------------------------------------------
 */

(function($) {
	$.fn.pngFix = function(selector) {
		selector = selector || '*';
		var arVersion = navigator.appVersion.split("MSIE");
		var version = parseFloat(arVersion[1]);
		if ($.browser.msie && (version >= 5.5 && version < 7)) {
			//fix images with png-source
			$(this).find("img").each(function() {
				if (this.src.indexOf(".png")==-1) return;
	
				$(this).attr('width',$(this).width());
				$(this).attr('height',$(this).height());
	
				var prevStyle = '';
				var strNewHTML = '';
				var imgId = ($(this).attr('id')) ? 'id="' + $(this).attr('id') + '" ' : '';
				var imgClass = ($(this).attr('class')) ? 'class="' + $(this).attr('class') + '" ' : '';
				var imgTitle = ($(this).attr('title')) ? 'title="' + $(this).attr('title') + '" ' : '';
				var imgAlt = ($(this).attr('alt')) ? 'alt="' + $(this).attr('alt') + '" ' : '';
				var imgAlign = ($(this).attr('align')) ? 'float:' + $(this).attr('align') + ';' : '';
				var imgHand = ($(this).parent().attr('href')) ? 'cursor:hand;' : '';
				if (this.style.border) {
					prevStyle += 'border:'+this.style.border+';';
					this.style.border = '';
				}
				if (this.style.padding) {
					prevStyle += 'padding:'+this.style.padding+';';
					this.style.padding = '';
				}
				if (this.style.margin) {
					prevStyle += 'margin:'+this.style.margin+';';
					this.style.margin = '';
				}
				var imgStyle = (this.style.cssText);
	
				strNewHTML += '<span '+imgId+imgClass+imgTitle+imgAlt;
				strNewHTML += 'style="position:relative;white-space:pre-line;display:inline-block;background:transparent;'+imgAlign+imgHand;
				strNewHTML += 'width:' + $(this).width() + 'px;' + 'height:' + $(this).height() + 'px;';
				strNewHTML += 'filter:progid:DXImageTransform.Microsoft.AlphaImageLoader' + '(src=\'' + $(this).attr('src') + '\', sizingMethod=\'scale\');';
				strNewHTML += imgStyle+'"></span>';
				if (prevStyle != ''){
					strNewHTML = '<span style="position:relative;display:inline-block;'+prevStyle+imgHand+'width:' + $(this).width() + 'px;' + 'height:' + $(this).height() + 'px;'+'">' + strNewHTML + '</span>';
				}
	
				$(this).hide();
				$(this).after(strNewHTML);
	
			});
		
		
			// fix css background pngs
			$(this).find(selector).each(function(){
				var bgIMG = $(this).css('background-image');
				if(bgIMG.indexOf(".png")!=-1){
					var iebg = bgIMG.split('url("')[1].split('")')[0];
					$(this).css('background-image', 'none');
					$(this).get(0).runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + iebg + "',sizingMethod='scale')";
				}
			});
		}
		return $;
	};

	$.fn.pngFixIe = function(selector) {
		selector = selector || '*';
		if ($.browser.msie) {
			// fix css background pngs
			$(this).find(selector).each(function(){
				var bgIMG = $(this).css('background-image');
				if(bgIMG.indexOf(".png")!=-1){
					var iebg = bgIMG.split('url("')[1].split('")')[0];
					$(this).css('background-image', 'none');
					$(this).get(0).runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + iebg + "',sizingMethod='scale')";
				}
			});
		}
		return $;
	};
})(jQuery);