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JS下拉缓冲菜单示例代码

2013-08-30 16:34 549 查看

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <style> body,html,div,ul,li,span,img,a{ margin:0; padding:0; } a{ text-decoration:none; color:#000; font-weight:bold; width:150px; display:inline-block; text-align:center; } li{ list-style:none; } img{ width:0; height:0; outline:none; } #tab{ margin:200px 0 0 300px; } #tab li{ float:left; width:150px; height:50px; line-height:50px; position:relative; margin-right:30px; } #tab img.map,#tab span.content{ position:absolute; } #tab span.content{ background:#333; color:#FFF; font-size:14px; text-align:center; height:0; } #tab img.map{ left:50%; bottom:0; } </style> <title>JS下拉缓冲菜单_网页代码站()</title> </head> <body> <div id="tab"> <ul> <li style="background:url('/images/20130826/psb1.png')"> <a href="#">路飞</a> <img src="/jscss/demoimg/201210/psb1.jpg" class="map" /> <span class="content">草帽海贼团船长，特征是头戴草帽，天性乐观、热情、善良、天真、单纯。</span> </li> <li style="background:url('/images/20130826/psb1.png')"> <a href="#">索隆</a> <img src="/images/20130826/psb2.jpg" class="map" /> <span class="content">草帽海贼团剑士，绿色头发，左耳戴三只黄色露珠耳环，绿色的肚兜,路痴。</span> </li> <li style="background:url('/images/20130826/psb1.png')"> <a href="#">娜美</a> <img src="/jscss/demoimg/201210/psb3.jpg" class="map" /> <span class="content">精通气象学和航海术，擅长偷术、骗术、谈判及威胁恐吓，头脑聪明又机灵。</span> </li> <li style="background:url('/images/20130826/psb1.png')"> <a href="#">山治</a> <img src="/images/20130826/psb4.jpg" class="map" /> <span class="content">草帽海贼团厨师，金发，有着卷曲眉毛，永远遮住半边脸的家伙，海贼中的绅士。</span> </li> </ul> </div> <script type="text/javascript"> function kzxf_zoom(id) { this.initialize.apply(this, arguments) } kzxf_zoom.prototype = { initialize : function() { var _this = this; this.wrapBox = document.getElementById('tab'); this.oLi = this.wrapBox.getElementsByTagName('li'); this.aImg = this.wrapBox.getElementsByTagName('img'); this.content = this.wrapBox.getElementsByTagName('span'); for(var i=0;i<this.oLi.length;i++) { (function(i){ _this.oLi[i].onmouseover = function() { _this.jump(_this.aImg[i], _this.content[i]); }; _this.oLi[i].onmouseout = function() { _this.hidden(_this.aImg[i], _this.content[i]); }; })(i) } }, jump : function(obj1, obj2) { var _this = this; _this.animation(obj1, {height:130, width:160, marginLeft:-78, marginTop:-128},function(){ _this.animation(obj1, {height:115, width:140, marginLeft:-70, marginTop:-115}, function(){ _this.animation(obj1, {height:120, width:150, marginLeft:-75, marginTop:-120}) }) }); _this.animation(obj2, {height:200}); }, hidden : function(obj1, obj2) { var _this = this; _this.animation(obj1, {width:0, height:0, marginLeft:0, marginTop:0}); _this.animation(obj2, {height:0}); }, animation : function(obj, oAttr, fnCallBack) { var _this = this; clearInterval(obj.timer); obj.timer = setInterval(function() { var bStop = true; for(proper in oAttr) { var iCur = parseFloat(_this.css(obj, proper)); proper == 'opacity' && (iCur = parseInt(iCur.toFixed(2) * 100)); var iSpeed = (oAttr[proper] - iCur) / 5; iSpeed = iSpeed > 0 ? Math.ceil(iSpeed) : Math.floor(iSpeed); if(iCur != oAttr[proper]) { bStop = false; _this.css(obj, proper, iCur + iSpeed); } } if(bStop) { clearInterval(obj.timer); fnCallBack && fnCallBack.apply(_this, arguments); } },20); }, css : function(obj, attr, value) { if(arguments.length == 2) { return obj.currentStyle ? obj.currentStyle[attr] : getComputedStyle(obj, null)[attr] } if(arguments.length == 3) { switch(attr) { case 'width' : case 'height' : case 'top' : case 'bottom' : case 'left' : case 'marginLeft': case 'marginTop': obj.style[attr] = value + 'px'; break; case 'opacity' : obj.style.filter = 'alpha(opacity = '+value+' )'; obj.style.opacity = value / 100; break; default : obj.style[attr] = value; break; } } } }; window.onload = function() { new kzxf_zoom('tab') }; </script> <br /> http://user.qzone.qq.com/1198772766 </body> </html>

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