dropdown.js

​

// JavaScript Document

var cssdropdown={

disappeardelay: 250,

disablemenuclick: false,

enableswipe: 1,

enableiframeshim: 1,

dropmenuobj: null, ie: document.all, firefox: document.getElementByIdx_x&&!document.all, swipetimer: undefined, bottomclip:0,

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;

},

swipeeffect:function(){

if (this.bottomclip<parseInt(this.dropmenuobj.offsetHeight)){

this.bottomclip+=10+(this.bottomclip/10)

this.dropmenuobj.style.clip="rect(0 auto "+this.bottomclip+"px 0)"

else

return

this.swipetimer=setTimeout("cssdropdown.swipeeffect()", 10)

showhide:function(obj, e){

if (this.ie || this.firefox)

this.dropmenuobj.style.left=this.dropmenuobj.style.top="-500px"

if (e.type=="click" && obj.visibility==hidden || e.type=="mouseover"){

if (this.enableswipe==1){

if (typeof this.swipetimer!="undefined")

clearTimeout(this.swipetimer)

obj.clip="rect(0 auto 0 0)"

this.bottomclip=0

this.swipeeffect()

obj.visibility="visible"

else if (e.type=="click")

obj.visibility="hidden"

iecompattest:function(){

return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body

clearbrowseredge:function(obj, whichedge){

var edgeoffset=0

if (whichedge=="rightedge"){

var windowedge=this.ie && !window.opera? this.iecompattest().scrollLeft+this.iecompattest().clientWidth-15 : window.pageXOffset+windows.innerWidth-15

this.dropmenuobj.contentmeasure=this.dropmenuobj.offsetWidth

if (windowedge-this.dropmenuobj.x < this.dropmenuobj.contentmeasure) 

edgeoffset=this.dropmenuobj.contentmeasure-obj.offsetWidth

else{

var topedge=this.ie && !window.opera? this.iecompattest().scrollTop : window.pageYOffset

var windowedge=this.ie && !window.opera? this.iecompattest().scrollTop+this.iecompattest().clientHeight-15 : window.pageYOffset+windows.innerHeight-18

this.dropmenuobj.contentmeasure=this.dropmenuobj.offsetHeight

if (windowedge-this.dropmenuobj.y < this.dropmenuobj.contentmeasure){

edgeoffset=this.dropmenuobj.contentmeasure+obj.offsetHeight

if ((this.dropmenuobj.y-topedge)<this.dropmenuobj.contentmeasure)

edgeoffset=this.dropmenuobj.y+obj.offsetHeight-topedge

return edgeoffset

dropit:function(obj, e, dropmenuID){

if (this.dropmenuobj!=null)

 this.dropmenuobj.style.visibility="hidden"

this.clearhidemenu()

if (this.ie||this.firefox){

obj.onmouseout=function(){cssdropdown.delayhidemenu()}

obj.onclick=function(){return !cssdropdown.disablemenuclick}

this.dropmenuobj=document.getElementByIdx_x(dropmenuID)

if(!this.dropmenuobj) return;

this.dropmenuobj.onmouseover=function(){cssdropdown.clearhidemenu()}

this.dropmenuobj.onmouseout=function(e){cssdropdown.dynamichide(e)}

this.dropmenuobj.onclick=function(){cssdropdown.delayhidemenu()}

this.showhide(this.dropmenuobj.style, 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()

positionshim:function(){

if (this.enableiframeshim && typeof this.shimobject!="undefined"){

if (this.dropmenuobj.style.visibility=="visible"){

this.shimobject.style.width=this.dropmenuobj.offsetWidth+"px"

this.shimobject.style.height=this.dropmenuobj.offsetHeight+"px"

this.shimobject.style.left=this.dropmenuobj.style.left

this.shimobject.style.top=this.dropmenuobj.style.top

this.shimobject.style.display=(this.dropmenuobj.style.visibility=="visible")? "block" : "none"

hideshim:function(){

if (this.enableiframeshim && typeof this.shimobject!="undefined")

this.shimobject.style.display='none'

contains_firefox:function(a, b) {

while (b.parentNode)

if ((b = b.parentNode) == a)

return true;

return false;

dynamichide:function(e){

var evtobj=window.event? window.event : e

if (this.ie&&!this.dropmenuobj.contains(evtobj.toElement))

this.delayhidemenu()

else if (this.firefox&&e.currentTarget!= evtobj.relatedTarget&& !this.contains_firefox(evtobj.currentTarget, evtobj.relatedTarget))

delayhidemenu:function(){

this.delayhide=setTimeout("cssdropdown.dropmenuobj.style.visibility='hidden'; cssdropdown.hideshim()",this.disappeardelay)

clearhidemenu:function(){

if (this.delayhide!="undefined")

clearTimeout(this.delayhide)

startchrome:function(){

for (var ids=0; ids<arguments.length; ids++){

var menuitems=document.getElementByIdx_x(arguments[ids]).getElementsByTagName_r("a")

for (var i=0; i<menuitems.length; i++){

if (menuitems[i].getAttribute("rel")){

var relvalue=menuitems[i].getAttribute("rel")

menuitems[i].onmouseover=function(e){

var event=typeof e!="undefined"? e : window.event

cssdropdown.dropit(this,event,this.getAttribute("rel"))

if (window.createPopup && !window.XmlHttpRequest){

document.write('<IFRAME id="iframeshim"  src="" style="display: none; left: 0; top: 0; z-index: 90; position: absolute; filter: progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=0)" frameBorder="0" scrolling="no"></IFRAME>')

this.shimobject=document.getElementByIdx_x("iframeshim")