lazyLoad=(function(){var l={};var a=[];var h=0;var d=-1;var j;var f;var e;function b(m){j=document.body;f=document.compatMode=="BackCompat"?j:document.documentElement;user_agent=navigator.userAgent.toLowerCase();e=m||["img","iframe"]}function c(){for(var q=0,m=e.length;q<m;q++){var r=document.getElementsByTagName(e[q]);for(var p=0,n=r.length;p<n;p++){if(typeof(r[p])=="object"&&r[p].getAttribute("l-l-c")){a.push(r[p])}}}for(var q=0,m=a.length;q<m;q++){var t=a[q];var s=g(t);if(l[s]){l[s].push(q)}else{var o=[];o[0]=q;l[s]=o;h++}}}function i(){if(!h){return}if(user_agent.indexOf("chrome")>-1||user_agent.indexOf("safari")>-1){var s=j.scrollTop}else{var s=f.scrollTop}var q=s+f.clientHeight;if(d==q){setTimeout(i,200);return}d=q;var r=f.clientHeight;var p=r+s;for(var o in l){if(p>o){var t=l[o];var m=t.length;for(var n=0;n<m;n++){a[t[n]].src="http://file.51240.com/file/51240/img/ico/"+a[t[n]].getAttribute("l-l-c")+".gif"}delete l[o];h--}}setTimeout(i,200)}function g(m){if(arguments.length!=1||m==null){return null}var n=m.offsetTop;while(m=m.offsetParent){n+=m.offsetTop}return n}function k(m){b(m);c();i()}return{init:k}})();