2010-01-27 65 views
0

在這個javascript的某處,它告訴我的網頁在每個菜單項之間放置一個空格。 alt text http://img85.imageshack.us/img85/5340/screenshot20100127at204.pngJavascript幫助

這裏是JavaScript:

//** Chrome Drop Down Menu- Author: Dynamic Drive (http://www.dynamicdrive.com) 

//** Updated: July 14th 06' to v2.0 
    //1) Ability to "left", "center", or "right" align the menu items easily, just by modifying the CSS property "text-align". 
    //2) Added an optional "swipe down" transitional effect for revealing the drop down menus. 
    //3) Support for multiple Chrome menus on the same page. 

//** Updated: Nov 14th 06' to v2.01- added iframe shim technique 

//** Updated: July 23rd, 08 to v2.4 
    //1) Main menu items now remain "selected" (CSS class "selected" applied) when user moves mouse into corresponding drop down menu. 
    //2) Adds ability to specify arbitrary HTML that gets added to the end of each menu item that carries a drop down menu (ie: a down arrow image). 
    //3) All event handlers added to the menu are now unobstrusive, allowing you to define your own "onmouseover" or "onclick" events on the menu items. 
    //4) Fixed elusive JS error in FF that sometimes occurs when mouse quickly moves between main menu items and drop down menus 

//** Updated: Oct 29th, 08 to v2.5 (only .js file modified from v2.4) 
    //1) Added ability to customize reveal animation speed (# of steps) 
    //2) Menu now works in IE8 beta2 (a valid doctype at the top of the page is required) 

var cssdropdown={ 
disappeardelay: 250, //set delay in miliseconds before menu disappears onmouseout 
dropdownindicator: '', //specify full HTML to add to end of each menu item with a drop down menu 
enablereveal: [true, 5], //enable swipe effect? [true/false, steps (Number of animation steps. Integer between 1-20. Smaller=faster)] 
enableiframeshim: 1, //enable "iframe shim" in IE5.5 to IE7? (1=yes, 0=no) 

//No need to edit beyond here//////////////////////// 

dropmenuobj: null, asscmenuitem: null, domsupport: document.all || document.getElementById, standardbody: null, iframeshimadded: false, revealtimers: {}, 

getposOffset:function(what, offsettype){ 
    var totaloffset=(offsettype=="left")? what.offsetLeft : what.offsetTop; 
    var parentEl=what.offsetParent; 
    while (parentEl!=null){ 
     totaloffset=(offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop; 
     parentEl=parentEl.offsetParent; 
    } 
    return totaloffset; 
}, 

css:function(el, targetclass, action){ 
    var needle=new RegExp("(^|\\s+)"+targetclass+"($|\\s+)", "ig") 
    if (action=="check") 
     return needle.test(el.className) 
    else if (action=="remove") 
     el.className=el.className.replace(needle, "") 
    else if (action=="add" && !needle.test(el.className)) 
     el.className+=" "+targetclass 
}, 

showmenu:function(dropmenu, e){ 
    if (this.enablereveal[0]){ 
     if (!dropmenu._trueheight || dropmenu._trueheight<10) 
      dropmenu._trueheight=dropmenu.offsetHeight 
     clearTimeout(this.revealtimers[dropmenu.id]) 
     dropmenu.style.height=dropmenu._curheight=0 
     dropmenu.style.overflow="hidden" 
     dropmenu.style.visibility="visible" 
     this.revealtimers[dropmenu.id]=setInterval(function(){cssdropdown.revealmenu(dropmenu)}, 10) 
    } 
    else{ 
     dropmenu.style.visibility="visible" 
    } 
    this.css(this.asscmenuitem, "selected", "add") 
}, 

revealmenu:function(dropmenu, dir){ 
    var curH=dropmenu._curheight, maxH=dropmenu._trueheight, steps=this.enablereveal[1] 
    if (curH<maxH){ 
     var newH=Math.min(curH, maxH) 
     dropmenu.style.height=newH+"px" 
     dropmenu._curheight= newH + Math.round((maxH-newH)/steps) + 1 
    } 
    else{ //if done revealing menu 
     dropmenu.style.height="auto" 
     dropmenu.style.overflow="hidden" 
     clearInterval(this.revealtimers[dropmenu.id]) 
    } 
}, 

clearbrowseredge:function(obj, whichedge){ 
    var edgeoffset=0 
    if (whichedge=="rightedge"){ 
     var windowedge=document.all && !window.opera? this.standardbody.scrollLeft+this.standardbody.clientWidth-15 : window.pageXOffset+window.innerWidth-15 
     var dropmenuW=this.dropmenuobj.offsetWidth 
     if (windowedge-this.dropmenuobj.x < dropmenuW) //move menu to the left? 
      edgeoffset=dropmenuW-obj.offsetWidth 
    } 
    else{ 
     var topedge=document.all && !window.opera? this.standardbody.scrollTop : window.pageYOffset 
     var windowedge=document.all && !window.opera? this.standardbody.scrollTop+this.standardbody.clientHeight-15 : window.pageYOffset+window.innerHeight-18 
     var dropmenuH=this.dropmenuobj._trueheight 
     if (windowedge-this.dropmenuobj.y < dropmenuH){ //move up? 
      edgeoffset=dropmenuH+obj.offsetHeight 
      if ((this.dropmenuobj.y-topedge)<dropmenuH) //up no good either? 
       edgeoffset=this.dropmenuobj.y+obj.offsetHeight-topedge 
     } 
    } 
    return edgeoffset 
}, 

dropit:function(obj, e, dropmenuID){ 
    if (this.dropmenuobj!=null) //hide previous menu 
     this.hidemenu() //hide menu 
    this.clearhidemenu() 
    this.dropmenuobj=document.getElementById(dropmenuID) //reference drop down menu 
    this.asscmenuitem=obj //reference associated menu item 
    this.showmenu(this.dropmenuobj, e) 
    this.dropmenuobj.x=this.getposOffset(obj, "left") 
    this.dropmenuobj.y=this.getposOffset(obj, "top") 
    this.dropmenuobj.style.left=this.dropmenuobj.x-this.clearbrowseredge(obj, "rightedge")+"px" 
    this.dropmenuobj.style.top=this.dropmenuobj.y-this.clearbrowseredge(obj, "bottomedge")+obj.offsetHeight+1+"px" 
    this.positionshim() //call iframe shim function 
}, 

positionshim:function(){ //display iframe shim function 
    if (this.iframeshimadded){ 
     if (this.dropmenuobj.style.visibility=="visible"){ 
      this.shimobject.style.width=this.dropmenuobj.offsetWidth+"px" 
      this.shimobject.style.height=this.dropmenuobj._trueheight+"px" 
      this.shimobject.style.left=parseInt(this.dropmenuobj.style.left)+"px" 
      this.shimobject.style.top=parseInt(this.dropmenuobj.style.top)+"px" 
      this.shimobject.style.display="block" 
     } 
    } 
}, 

hideshim:function(){ 
    if (this.iframeshimadded) 
     this.shimobject.style.display='none' 
}, 

isContained:function(m, e){ 
    var e=window.event || e 
    var c=e.relatedTarget || ((e.type=="mouseover")? e.fromElement : e.toElement) 
    while (c && c!=m)try {c=c.parentNode} catch(e){c=m} 
    if (c==m) 
     return true 
    else 
     return false 
}, 

dynamichide:function(m, e){ 
    if (!this.isContained(m, e)){ 
     this.delayhidemenu() 
    } 
}, 

delayhidemenu:function(){ 
    this.delayhide=setTimeout("cssdropdown.hidemenu()", this.disappeardelay) //hide menu 
}, 

hidemenu:function(){ 
    this.css(this.asscmenuitem, "selected", "remove") 
    this.dropmenuobj.style.visibility='hidden' 
    this.dropmenuobj.style.left=this.dropmenuobj.style.top="-1000px" 
    this.hideshim() 
}, 

clearhidemenu:function(){ 
    if (this.delayhide!="undefined") 
     clearTimeout(this.delayhide) 
}, 

addEvent:function(target, functionref, tasktype){ 
    if (target.addEventListener) 
     target.addEventListener(tasktype, functionref, false); 
    else if (target.attachEvent) 
     target.attachEvent('on'+tasktype, function(){return functionref.call(target, window.event)}); 
}, 

startchrome:function(){ 
    if (!this.domsupport) 
     return 
    this.standardbody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body 
    for (var ids=0; ids<arguments.length; ids++){ 
     var menuitems=document.getElementById(arguments[ids]).getElementsByTagName("a") 
     for (var i=0; i<menuitems.length; i++){ 
      if (menuitems[i].getAttribute("rel")){ 
       var relvalue=menuitems[i].getAttribute("rel") 
       var asscdropdownmenu=document.getElementById(relvalue) 
       this.addEvent(asscdropdownmenu, function(){cssdropdown.clearhidemenu()}, "mouseover") 
       this.addEvent(asscdropdownmenu, function(e){cssdropdown.dynamichide(this, e)}, "mouseout") 
       this.addEvent(asscdropdownmenu, function(){cssdropdown.delayhidemenu()}, "click") 
       try{ 
        menuitems[i].innerHTML=menuitems[i].innerHTML+" "+this.dropdownindicator 
       }catch(e){} 
       this.addEvent(menuitems[i], function(e){ //show drop down menu when main menu items are mouse over-ed 
        if (!cssdropdown.isContained(this, e)){ 
         var evtobj=window.event || e 
         cssdropdown.dropit(this, evtobj, this.getAttribute("rel")) 
        } 
       }, "mouseover") 
       this.addEvent(menuitems[i], function(e){cssdropdown.dynamichide(this, e)}, "mouseout") //hide drop down menu when main menu items are mouse out 
       this.addEvent(menuitems[i], function(){cssdropdown.delayhidemenu()}, "click") //hide drop down menu when main menu items are clicked on 
      } 
     } //end inner for 
    } //end outer for 
    if (this.enableiframeshim && document.all && !window.XDomainRequest && !this.iframeshimadded){ //enable iframe shim in IE5.5 thru IE7? 
     document.write('<IFRAME id="iframeshim" src="about:blank" frameBorder="0" scrolling="no" style="left:0; top:0; position:absolute; display:none;z-index:90; background: transparent;"></IFRAME>') 
     this.shimobject=document.getElementById("iframeshim") //reference iframe object 
     this.shimobject.style.filter='progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=0)' 
     this.iframeshimadded=true 
    } 
} //end startchrome 

} 
+0

歡迎來到SO。請在這種情況下,不要在這裏轉儲完整的腳本,它太大了。請鏈接到您從中獲得它的源頁面(我想是在Dynamic Drive上的某處)。 – 2010-01-27 22:12:43

+0

假設代碼不應該生成看起來像這個問題的菜單可能在你的CSS,而不是你的JavaScript。你可以使用代碼按鈕(101010)格式化JavaScript的相關部分,並添加包含此腳本的CSS(如果有)? – 2010-01-27 22:13:47

回答

0

嘗試每個那些元件的設置爲display:blockfloat:left。這將消除差距。

+0

你能告訴我一個如何可以應用到這個JavaScript代碼的例子嗎? – Willy 2010-01-28 00:20:09

1

是的,我可能期望它是你的CSS,而不是JavaScript。