jQuery.extend({BgImageTransitions:[]});jQuery.fn.extend({BgImageTransition:function(src,options){if(!src){return jQuery;}
function copyCSS(from,to){jQuery(['border-bottom-color','border-bottom-style','border-bottom-width','border-left-lolor','border-left-style','border-left-width','border-right-color','border-right-style','border-right-width','border-spacing','border-top-color','border-top-style','border-top-width','bottom','height','left','margin-bottom','margin-left','margin-right','margin-top','marker-offset','max-height','max-width','min-height','min-width','opacity','outline-color','outline-offset','outline-width','padding-bottom','padding-left','padding-right','padding-top','position','right','top','width','z-index']).each(function(i,v){jQuery(to).css(v,jQuery(from).css(v));});}
if(!this.css('zIndex')){this.css('zIndex',1);}
var settings=jQuery.extend({effect:{opacity:'toggle'},duration:'slow',easing:'linear',callback:function(){},helperElementId:this.attr('id')+'2',zindex:parseInt(this.css('zIndex'),10)+1},options);var helperElement=null;if(!jQuery.BgImageTransitions[this.attr('id')]){helperElement=this.clone();copyCSS(this,helperElement);helperElement.css('zIndex',settings.zindex);helperElement.css('display','none');helperElement.attr('id',settings.helperElementId);helperElement.insertAfter(this);jQuery.BgImageTransitions[this.attr('id')]=helperElement;}
else{helperElement=jQuery.BgImageTransitions[this.attr('id')];}
var tempImage=new Image();jQuery(tempImage).load(function(){var newImage=(helperElement.css('display')=='block')?jQuery(this):jQuery(helperElement);newImage.css('backgroundImage','url('+tempImage.src+')');helperElement.animate(settings.effect,settings.duration,settings.easing,settings.callback);});tempImage.src=src;return jQuery;}});