顶部可以折叠的菜单工具栏_层和布局特效
顶部可以折叠的菜单工具栏，显示在网页的最上部，鼠标放到主按钮上，菜单就向下滑开，移走后关闭，用作菜单或制作工具栏效果都挺不错。<!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> <title>可以折叠的菜单工具栏</title> <style> html,body{margin:0;} body{ url(/jscss/demoimg/200908/img.jpg) repeat-x; } ha{margin:0 auto;} img{border:none;} #fx_topToolbar{position:relative;top:-76px;left:0;margin:0 auto;height:92px;background:#0C3E74; width:700px;text-align:center;} #fx_topToolbar .shell{ margin:0 auto;padding:13px 0;} #btn_offOn{position:absolute;bottom:-8px;left:20px;height:24px; width:150px;1122123<img src=http://p1.mb5u.com/texiao/3/20100522231336320.gif _fcksavedurl=http://p1.mb5u.com/texiao/3/20100522231336320.gif>2244234background:url(http://p1.mb5u.com/texiao/3/20100522231336320.gif) no-repeat;} #btn_offOn a{display:block;zoom:1;height:24px;position:relative;right:-16px;1122123<img src=http://p1.mb5u.com/texiao/3/20100522231336321.gif _fcksavedurl=http://p1.mb5u.com/texiao/3/20100522231336321.gif>2244234background:url(http://p1.mb5u.com/texiao/3/20100522231336321.gif) no-repeat 100% 0;} </style> <script> (JS={ $:function(o){return typeof o=="string"?document.getElementById(o):o}, on:function(o,type,fn){o.attachEvent?o.attachEvent('on'+type,function(){fn.call(o)}):o.addEventListener(type,fn,false);return JS.on}, move:function(who,attr,val,s,fn){ var fm=parseInt(who.style[attr])||0; clearInterval(who['timer_'+attr]); var iFx=(function(form,to,s){ return function (){return form+=Math[form<to?'ceil':'floor']((to-form)*(s||0.3))}; })(fm,val,s); who['timer_'+attr]=setInterval(function (){ var v=iFx(); who.style[attr]=v+'px'; if(v==val){ fn&&fn.call(who);clearInterval(who['timer_'+attr]);}; },18); } }).on(window,'load',function (){ var Q=JS.$('fx_topToolbar');Q.style.top='-74px'; JS.on(JS.$('btn_offOn'),'mouseover',function(){JS.move(Q,'top',0)}) (Q,'mouseout',function (){Q.outTimer=setTimeout(function(){JS.move(Q,'top',-74)},10)}) (Q,'mouseover',function (){clearTimeout(this.outTimer)}); }) </script> </head> <body> <div id="fx_topToolbar"> <div class="shell"> <a href="#" title=""><img src="/jscss/demoimg/200908/1.gif" width="231" height="58" alt="" /></a> <a href="#" title=""><img src="/jscss/demoimg/200908/2.gif" width="231" height="58" alt="" /></a> </div> <div id="btn_offOn"><a href="#" title=""></a></div> </div> </body> </html>
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