/*
 * jQuery ifixpng plugin
 * (previously known as pngfix)
 * Version 3.1.2  (2008/09/01)
 * @requires jQuery v1.2.6 or above, or a lower version with the dimensions plugin
 * 
 * Based on the plugin by Kush M., http://jquery.khurshid.com
 *
 * Background position Fixed
 * Also fixes non-visible images
 * (c) Copyright Yereth Jansen (yereth@yereth.nl)
 * personal website: http://www.yereth.nl
 * Company website: http://www.wharf.nl
 * 
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 *
 * For a demonstration of the background-position being fixed:
 * http://www.yereth.nl/bgpos.html
 *
 * Plugin page:
 * http://plugins.jquery.com/project/iFixPng2
 *
 */
;(function($){$.ifixpng=function(customPixel){$.ifixpng.pixel=customPixel;};$.ifixpng.regexp={bg:/^url\(["']?(.*\.png([?].*)?)["']?\)$/i,img:/.*\.png([?].*)?$/i},$.ifixpng.getPixel=function(){return $.ifixpng.pixel||'images/pixel.gif';};var hack={base:$('base').attr('href'),ltie7:$.browser.msie&&$.browser.version<7,filter:function(src){return"progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=true,sizingMethod=crop,src='"+src+"')";}};$.fn.ifixpng=hack.ltie7?function(){function fixImage(image,source,width,height,hidden){image.css({filter:hack.filter(source),width:width,height:height}).attr({src:$.ifixpng.getPixel()}).positionFix();}
return this.each(function(){var $$=$(this);if($$.is('img')||$$.is('input')){var source,img;if(this.src&&this.src.match($.ifixpng.regexp.img)){source=(hack.base&&this.src.substring(0,1)!='/'&&this.src.indexOf(hack.base)===-1)?hack.base+this.src:this.src;if(!this.width||!this.height){$(new Image()).one('load',function(){fixImage($$,source,this.width,this.height);$(this).remove();}).attr('src',source);}else fixImage($$,source,this.width,this.height);}}else if(this.style){var imageSrc=$$.css('backgroundImage');if(imageSrc&&imageSrc.match($.ifixpng.regexp.bg)&&this.currentStyle.backgroundRepeat=='no-repeat'){imageSrc=RegExp.$1;var x=this.currentStyle.backgroundPositionX||0,y=this.currentStyle.backgroundPositionY||0;if(x||y){var css={},img;if(typeof x!='undefined'){if(x=='left')css.left=0;else if(x=='right')css.right=$$.width()%2===1?-1:0;else css.left=x;}
if(typeof y!='undefined'){if(y=='bottom')css.bottom=$$.height()%2===1?-1:0;else if(y=='top')css.top=0;else css.top=y;}
img=new Image();$(img).one('load',function(){var x,y,expr={},prop;if(/center|%/.test(css.top)){expr.top="(this.parentNode.offsetHeight - this.offsetHeight) * "+(css.top=='center'?0.5:(parseInt(css.top)/100));delete css.top;}
if(/center|%/.test(css.left)){expr.left="(this.parentNode.offsetWidth - this.offsetWidth) * "+(css.left=='center'?0.5:(parseInt(css.left)/100));delete css.left;}
$$.positionFix().css({backgroundImage:'none'}).prepend($('<div></div>').css(css).css({width:this.width,height:this.height,position:'absolute',filter:hack.filter(imageSrc)}));if(expr.top||expr.left){var elem=$$.children(':first')[0];for(prop in expr)elem.style.setExpression(prop,expr[prop],'JavaScript');}
$(this).remove();});img.src=imageSrc;}else{$$.css({backgroundImage:'none',filter:hack.filter(imageSrc)});}}}});}:function(){return this;};$.fn.positionFix=function(){return this.each(function(){var $$=$(this);if($$.css('position')!='absolute')$$.css({position:'relative'});});};})(jQuery);