這篇文章主要介紹了js實現頂部可折疊的菜單工具欄效果,可實現鼠標滑過菜單工具欄出現折疊與展開效果,涉及javascript鼠標事件及樣式的操作技巧,需要的朋友可以參考下
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 <!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>可以折疊的菜單工具欄</title> <style> html,body{ margin:0; } body{ url(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; background:url(img34.gif) no-repeat; } #btn_offOn a{ display:block;zoom:1;height:24px; position:relative;right:-16px; background:url(tip.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="1.gif" width="231" height="58" alt="" /> </a> <a href="#" title=""> <img src="2.gif" width="231" height="58" alt="" /> </a> </div> <div id="btn_offOn"><a href="#" title=""></a></div> </div> </body> </html>希望本文所述對大家的javascript程序設計有所幫助。