基于MooTools的图片懒加载脚本

<script>
   window.addEvent('domready',function(){
		var win = this;
		var forInitA = $$('img');
		forInitA.each(function(item,index){
			if(!item)return;
			 if((item.getPosition(win).y-win.getScrollTop())<win.getSize().y){

			 }else{
				item.set('init_src',item.get('src'));
				item.set('src','/lazyloads/grey.gif');
			 }
		});

        var forInit = $$('img[init_src]');
        var win = this;

        (function(){
            if(!forInit.length)return false;
            var loop = arguments.callee;
            var loop = function(){
                forInit.each(function(item,index){
                    if(!item)return;
                    if((item.getPosition(win).y-win.getScrollTop())<win.getSize().y){
                        if(item.get('init_src')){
                            item.set('src',item.get('init_src')).removeProperty('init_src')
                        }
                        // forInit.erase(item);
                    }

                    if(index == (forInit.length-1)){loop.delay(200);}

                });
            }
            loop.delay(200);
        })();

   });
</script>

演示网址：http://www.etzpf.com/