gradual element fader

sorry! no preview but help me explain it to those who knew how it works. thanks.

btw. here's the

Code:

//Gradual Elements Fader- By Dynamic Drive at http://www.dynamicdrive.com
//Last updated: Nov 8th, 07'

var gradualFader={}

gradualFader.baseopacity=0.4 //set base opacity when mouse isn't over element (decimal below 1)
gradualFader.increment=0.2 //amount of opacity to increase after each iteration (suggestion: 0.1 or 0.2)

document.write('<style type="text/css">\n') //write out CSS to enable opacity on "gradualfader" class
document.write('.gradualfader{filter:progid:DXImageTransform.Microsoft.alpha(opacity='+gradualFader.baseopacity*100+'); -moz-opacity:'+gradualFader.baseopacity+'; opacity:'+gradualFader.baseopacity+';}\n')
document.write('</style>')

gradualFader.setopacity=function(obj, value){ //Sets the opacity of targetobject based on the passed in value setting (0 to 1 and in between)
   var targetobject=obj
   if (targetobject && targetobject.filters && targetobject.filters[0]){ //IE syntax
      if (typeof targetobject.filters[0].opacity=="number") //IE6
         targetobject.filters[0].opacity=value*100
      else //IE 5.5
         targetobject.style.filter="alpha(opacity="+value*100+")"
      }
   else if (targetobject && typeof targetobject.style.MozOpacity!="undefined") //Old Mozilla syntax
      targetobject.style.MozOpacity=value
   else if (targetobject && typeof targetobject.style.opacity!="undefined") //Standard opacity syntax
      targetobject.style.opacity=value
   targetobject.currentopacity=value
}

gradualFader.fadeupdown=function(obj, direction){
   var targetobject=obj
   var fadeamount=(direction=="fadeup")? this.increment : -this.increment
   if (targetobject && (direction=="fadeup" && targetobject.currentopacity<1 || direction=="fadedown" && targetobject.currentopacity>this.baseopacity)){
      this.setopacity(obj, targetobject.currentopacity+fadeamount)
      window["opacityfader"+obj._fadeorder]=setTimeout(function(){gradualFader.fadeupdown(obj, direction)}, 50)
   }
}

gradualFader.clearTimer=function(obj){
if (typeof window["opacityfader"+obj._fadeorder]!="undefined")
   clearTimeout(window["opacityfader"+obj._fadeorder])
}

gradualFader.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
}

gradualFader.fadeinterface=function(obj, e, direction){
   if (!this.isContained(obj, e)){
      gradualFader.clearTimer(obj)
      gradualFader.fadeupdown(obj, direction)
   }
}

gradualFader.collectElementbyClass=function(classname){ //Returns an array containing DIVs with specified classname
   var classnameRE=new RegExp("(^|\\s+)"+classname+"($|\\s+)", "i") //regular expression to screen for classname within element
   var pieces=[]
   var alltags=document.all? document.all : document.getElementsByTagName("*")
   for (var i=0; i<alltags.length; i++){
      if (typeof alltags[i].className=="string" && alltags[i].className.search(classnameRE)!=-1)
         pieces[pieces.length]=alltags[i]
   }
   return pieces
}

gradualFader.init=function(){
   var targetobjects=this.collectElementbyClass("gradualfader")
   for (var i=0; i<targetobjects.length; i++){
      targetobjects[i]._fadeorder=i
      this.setopacity(targetobjects[i], this.baseopacity)
      targetobjects[i].onmouseover=function(e){gradualFader.fadeinterface(this, e, "fadeup")}
      targetobjects[i].onmouseout=function(e){gradualFader.fadeinterface(this, e, "fadedown")}
   }
}

compile it as a JS form. Then, here you go. XD

nice. :]

thanks for this. ^_^

your welcome Patrick..

cant relate:(

. wers yur credits then? tsk!

^ . that rank doesn't satisfied THAT CODE. omg.

maybe . hmm ? Be on the topic.

yes i am my dear. ::
dats why i am posting hirr .

nice.
thankz for sharing

aw!

tnx sir.

thnx 4 sharin

Thank you guys.