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網(wǎng)站設(shè)計(jì)的多級(jí)菜單導(dǎo)航
　　想要上面一樣漂亮的多級(jí)菜單導(dǎo)航嗎？只要你在網(wǎng)站設(shè)計(jì)的時(shí)候?qū)⒁韵麓a放入網(wǎng)站中，就可以實(shí)現(xiàn)同樣的效果，快來(lái)試試吧！ <!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> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <meta name="keywords" content="網(wǎng)站設(shè)計(jì)" /> <meta name="description" content="" /> <title>網(wǎng)站設(shè)計(jì)導(dǎo)航——點(diǎn)擊后慢慢彈出下拉菜單</title> <script type=text/javascript> function $(d){ return document.getElementById(d); } // set or get the current display style of the div function dsp(d,v){ if(v==undefined){ return d.style.display; }else{ d.style.display=v; } } // set or get the height of a div. function sh(d,v){ // if you are getting the height then display must be block to return the absolute height if(v==undefined){ if(dsp(d)!='none'&& dsp(d)!=''){ return d.offsetHeight; } viz = d.style.visibility; d.style.visibility = 'hidden'; o = dsp(d); dsp(d,'block'); r = parseInt(d.offsetHeight); dsp(d,o); d.style.visibility = viz; return r; }else{ d.style.height=v; } } /* * Variable 'S' defines the speed of the accordian * Variable 'T' defines the refresh rate of the accordian */ s=7; t=10; //Collapse Timer is triggered as a setInterval to reduce the height of the div exponentially. function ct(d){ d = $(d); if(sh(d)>0){ v = Math.round(sh(d)/d.s); v = (v<1) ? 1 :v ; v = (sh(d)-v); sh(d,v+'px'); d.style.opacity = (v/d.maxh); d.style.filter= 'alpha(opacity='+(v*100/d.maxh)+');'; }else{ sh(d,0); dsp(d,'none'); clearInterval(d.t); } } //Expand Timer is triggered as a setInterval to increase the height of the div exponentially. function et(d){ d = $(d); if(sh(d)<d.maxh){ v = Math.round((d.maxh-sh(d))/d.s); v = (v<1) ? 1 :v ; v = (sh(d)+v); sh(d,v+'px'); d.style.opacity = (v/d.maxh); d.style.filter= 'alpha(opacity='+(v*100/d.maxh)+');'; }else{ sh(d,d.maxh); clearInterval(d.t); } } // Collapse Initializer function cl(d){ if(dsp(d)=='block'){ clearInterval(d.t); d.t=setInterval('ct("'+d.id+'")',t); } } //Expand Initializer function ex(d){ if(dsp(d)=='none'){ dsp(d,'block'); d.style.height='0px'; clearInterval(d.t); d.t=setInterval('et("'+d.id+'")',t); } } // Removes Classname from the given div. function cc(n,v){ s=n.className.split(/\s+/); for(p=0;p<s.length;p++){ if(s[p]==v+n.tc){ s.splice(p,1); n.className=s.join(' '); break; } } } //Accordian Initializer function Accordian(d,s,tc){ // get all the elements that have id as content l=$(d).getElementsByTagName('div'); c=[]; for(i=0;i<l.length;i++){ h=l[i].id; if(h.substr(h.indexOf('-')+1,h.length)=='content'){c.push(h);} } sel=null; //then search through headers for(i=0;i<l.length;i++){ h=l[i].id; if(h.substr(h.indexOf('-')+1,h.length)=='header'){ d=$(h.substr(0,h.indexOf('-'))+'-content'); d.style.display='none'; d.style.overflow='hidden'; d.maxh =sh(d