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window.onload=function(){ var imgArr=[ {"path":"images/1.jpg"}, {"path":"images/2.jpg"}, {"path":"images/3.jpg"}, {"path":"images/4.jpg"}, {"path":"images/5.jpg"}, {"path":"images/6.jpg"}, {"path":"images/7.jpg"} ]; var size=[ {"top":60,"left":0,"width":400,"height":240,"zIndex":1,"opacity":0}, {"top":60,"left":0,"width":400,"height":240,"zIndex":2,"opacity":40}, {"top":30,"left":150,"width":500,"height":300,"zIndex":3,"opacity":70}, {"top":0,"left":300,"width":600,"height":360,"zIndex":4,"opacity":100}, {"top":30,"left":550,"width":500,"height":300,"zIndex":3,"opacity":70}, {"top":60,"left":800,"width":400,"height":240,"zIndex":2,"opacity":40}, {"top":60,"left":800,"width":400,"height":240,"zIndex":1,"opacity":0} ]; var imgSum=imgArr.length; var wrap=document.getElementById('wrap'); var cont=wrap.firstElementChild || wrap.firstChild; var btnArr=wrap.getElementsByTagName('a'); var falg=true; var speed=7000; wrap.onmouseover=function(){ for (var i=0;i<btnArr.length;i++) { btnArr[i].style.display='block'; } clearInterval(wrap.timer); } wrap.onmouseout=function(){ for (var i=0;i<btnArr.length;i++) { btnArr[i].style.display='none'; } wrap.timer=setInterval(function(){ move(true); },speed); } for (var i=0;i<imgSum;i++) { var lis=document.createElement('li'); // lis.style.cssText='top:'+size[i].top+'px;'+'left:'+size[i].left+'px;'+'width:'+size[i].width+'px;'+'z-index:'+size[i].zIndex+';'+'height:' // +size[i].height+'px;'+'opacity:'+size[i].opacity+';'; lis.style.backgroundImage='url('+imgArr[i].path+')'; cont.appendChild(lis); } var liArr=cont.children; move(); wrap.timer=setInterval(function(){ move(true); },speed); btnArr[1].onclick=function(){ if (falg) { move(true); } } btnArr[0].onclick=function(){ if (falg) { move(false); } } function move(bool){ if(bool!=undefined){ if(bool){ size.unshift(size.pop()); }else { size.push(size.shift()); } } for (var i=0;i<liArr.length;i++) { animate(liArr[i],size[i],function(){ falg=true; }); } } }