/**
 * --------------------------------------------------------------------
 * jquery-plugin "pngfix"
 * version: 1.2, 09.03.2009
 * 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)
 *
 * changelog:
 *    09.03.2009 version 1.2
 *    - update for jquery 1.3.x, removed @ from selectors
 *    11.09.2007 version 1.1
 *    - removed noconflict
 *    - added png-support for input type=image
 *    - 01.08.2007 css background-image support extension added by scott jehl, scott@filamentgroup.com, http://www.filamentgroup.com
 *    31.05.2007 initial version 1.0
 * --------------------------------------------------------------------
 * @example $(function(){$(document).pngfix();});
 * @desc fixes all png's in the document on document.ready
 *
 * jquery(function(){jquery(document).pngfix();});
 * @desc fixes all png's in the document on document.ready when using noconflict
 *
 * @example $(function(){$('div.examples').pngfix();});
 * @desc fixes all png's within div with class examples
 *
 * @example $(function(){$('div.examples').pngfix( { blankgif:'ext.gif' } );});
 * @desc fixes all png's within div with class examples, provides blank gif for input with png
 * --------------------------------------------------------------------
 */

(function($) {

jquery.fn.pngfix = function(settings) {

	// settings
	settings = jquery.extend({
		blankgif: 'blank.gif'
	}, settings);

	var ie55 = (navigator.appname == "microsoft internet explorer" && parseint(navigator.appversion) == 4 && navigator.appversion.indexof("msie 5.5") != -1);
	var ie6 = (navigator.appname == "microsoft internet explorer" && parseint(navigator.appversion) == 4 && navigator.appversion.indexof("msie 6.0") != -1);

	if (jquery.browser.msie && (ie55 || ie6)) {

		//fix images with png-source
		jquery(this).find("img[src$=.png]").each(function() {

			jquery(this).attr('width',jquery(this).width());
			jquery(this).attr('height',jquery(this).height());

			var prevstyle = '';
			var strnewhtml = '';
			var imgid = (jquery(this).attr('id')) ? 'id="' + jquery(this).attr('id') + '" ' : '';
			var imgclass = (jquery(this).attr('class')) ? 'class="' + jquery(this).attr('class') + '" ' : '';
			var imgtitle = (jquery(this).attr('title')) ? 'title="' + jquery(this).attr('title') + '" ' : '';
			var imgalt = (jquery(this).attr('alt')) ? 'alt="' + jquery(this).attr('alt') + '" ' : '';
			var imgalign = (jquery(this).attr('align')) ? 'float:' + jquery(this).attr('align') + ';' : '';
			var imghand = (jquery(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:' + jquery(this).width() + 'px;' + 'height:' + jquery(this).height() + 'px;';
			strnewhtml += 'filter:progid:dximagetransform.microsoft.alphaimageloader' + '(src=\'' + jquery(this).attr('src') + '\', sizingmethod=\'scale\');';
			strnewhtml += imgstyle+'"></span>';
			if (prevstyle != ''){
				strnewhtml = '<span style="position:relative;display:inline-block;'+prevstyle+imghand+'width:' + jquery(this).width() + 'px;' + 'height:' + jquery(this).height() + 'px;'+'">' + strnewhtml + '</span>';
			}

			jquery(this).hide();
			jquery(this).after(strnewhtml);

		});

		// fix css background pngs
		jquery(this).find("*").each(function(){
			var bgimg = jquery(this).css('background-image');
			if(bgimg.indexof(".png")!=-1){
				var iebg = bgimg.split('url("')[1].split('")')[0];
				jquery(this).css('background-image', 'none');
				jquery(this).get(0).runtimestyle.filter = "progid:dximagetransform.microsoft.alphaimageloader(src='" + iebg + "',sizingmethod='scale')";
			}
		});
		
		//fix input with png-source
		jquery(this).find("input[src$=.png]").each(function() {
			var bgimg = jquery(this).attr('src');
			jquery(this).get(0).runtimestyle.filter = 'progid:dximagetransform.microsoft.alphaimageloader' + '(src=\'' + bgimg + '\', sizingmethod=\'scale\');';
   		jquery(this).attr('src', settings.blankgif)
		});
	
	}
	
	return jquery;

};

})(jquery);