/**
 * --------------------------------------------------------------------
 * jQuery-Plugin "pngFix"
 * Version: 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)
 *
 * Changelog:
 *    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
 * --------------------------------------------------------------------
 */

var cptImage = 0;

(function($) {

jQuery.fn.pngFix = function(settings) {

// Settings
	settings = jQuery.extend({
		blankgif: 'blank.gif',
		checkChilds : true
	}, 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)) {
		if(settings.checkChilds){
			//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);
				
				var base = $('base').attr('href');
				if (base) {
					// remove anything after the last '/'
					base = base.replace(/\/[^\/]+$/,'/');
				}
				var source = (base && jQuery(this).attr('src').search(/^(\/|http:)/i)) ? base + jQuery(this).attr('src') : jQuery(this).attr('src');
	
				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=\'' + source + '\', sizingMethod=\'image\');';
				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);
	
			});
		}

		if(settings.checkChilds){
			// fix css background pngs
			jQuery(this).find("*").each(function(){
				var bgIMG = jQuery(this).css('background-image');
				alert(bgIMG);
				if(bgIMG.indexOf(".png")!=-1){
					var iebg = bgIMG.split('url("')[1].split('")')[0];
					jQuery(this).css('background-image', 'none');
					var base = $('base').attr('href');
					if (base) {
						// remove anything after the last '/'
						base = base.replace(/\/[^\/]+$/,'/');
					}
					var source = (base && iebg.search(/^(\/|http:)/i)) ? base + iebg : iebg;
					jQuery(this).get(0).runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + source + "',sizingMethod='scale')";
				}
			});
		} else {
			// fix css self background png (not childs)
			var bgIMG = jQuery(this).css('background-image');
			var iebg = bgIMG.split('url("')[1].split('")')[0];
			jQuery(this).css('background-image', 'none');
			var base = $('base').attr('href');
			if (base) {
				// remove anything after the last '/'
				base = base.replace(/\/[^\/]+$/,'/');
			}
			var source = (base && iebg.search(/^(\/|http:)/i)) ? base + iebg : iebg;
			jQuery(this).get(0).runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + source + "',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);