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- <script type='text/javascript'>//<![CDATA[
- (function(a) {
- a.fn.lazyload=function(b){var c={threshold:
- 0,failurelimit:0,event:"scroll",effect:"show",container:window;
- };
- if(b) {
- a.extend(c,b);
- }
- var d=this;if("scroll"==c.event) {
- a(c.container).bind("scroll",function(b){var e=0;d.each(function(){if
- (a.abovethetop(this,c)||a.leftofbegin(this,c)){
- }
- else if(!a.belowthefold(this,c)&&!a.rightoffold(this,c)) {
- a(this).trigger("appear");
- }
- else {
- if(e++>c.failurelimit){return false;
- }}});
- var f=a.grep(d,function(a) {
- return!a.loaded;
- });
- d=a(f);
- })}
- this.each(function() {
- var b=this;if(undefined==a(b).attr("original")){a(b).attr("original",a(b).attr("src"));
- }
- if("scroll"!=c.event||undefined==a(b).attr("src")||c.placeholder==a(b).attr("src")||
- a.abovethetop(b,c)||a.leftofbegin(b,c)||a.belowthefold(b,c)||a.rightoffold(b,c)) {
- if(c.placeholder){a(b).attr("src",c.placeholder);
- }
- else {
- a(b).removeAttr("src");
- }
- b.loaded=false;
- }
- else {
- b.loaded=true;
- }
- a(b).one("appear",function() {
- if(!this.loaded){a("<img />").bind("load",function(){a(b).hide().attr("src",a(b).attr
- ("original"))[c.effect](c.effectspeed);b.loaded=true;
- }).attr("src",a(b).attr("original"));
- }});
- if("scroll"!=c.event) {
- a(b).bind(c.event,function(c){if(!b.loaded){a(b).trigger("appear");
- }})}});
- a(c.container).trigger(c.event);return this;
- };
- a.belowthefold=function(b,c) {
- if(c.container===undefined||c.container===window){var d=a(window).height()+a
- (window).scrollTop();
- }
- else {
- var d=a(c.container).offset().top+a(c.container).height();
- }
- return d<=a(b).offset().top-c.threshold;
- };
- a.rightoffold=function(b,c) {
- if(c.container===undefined||c.container===window){var d=a(window).width()+a
- (window).scrollLeft();
- }
- else {
- var d=a(c.container).offset().left+a(c.container).width();
- }
- return d<=a(b).offset().left-c.threshold;
- };
- a.abovethetop=function(b,c) {
- if(c.container===undefined||c.container===window){var d=a(window).scrollTop();
- }
- else {
- var d=a(c.container).offset().top;
- }
- return d>=a(b).offset().top+c.threshold+a(b).height();
- };
- a.leftofbegin=function(b,c) {
- if(c.container===undefined||c.container===window){var d=a(window).scrollLeft();
- }
- else {
- var d=a(c.container).offset().left;
- }
- return d>=a(b).offset().left+c.threshold+a(b).width();
- };
- a.extend(a.expr[":"], {
- "below-the-fold"
- :"$.belowthefold(a, {threshold : 0, container: window})","above-the-fold": "!
- $.belowthefold(a, {threshold : 0, container: window})","right-of-fold":"$.rightoffold
- (a, {threshold : 0, container: window})","left-of-fold":"!$.rightoffold(a, {threshold :
- 0, container: window})";
- })})(jQuery);$(function() {
- $("img").lazyload({placeholder:
- "http://i22.servimg.com/u/f22/15/42/72/40/grey10.gif",effect:"fadeIn",threshold:"-50";
- })})//]]></script>
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