Team:Beijing HDFLS High/header

disappeardelay: 200, //set delay in miliseconds before menu disappears onmouseout

disablemenuclick: false, //when user clicks on a menu item with a drop down menu, disable menu item's link?

enableiframeshim: 1, //1 or 0, for true or false

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

dropmenuobj: null, ie: document.all, firefox: document.getElementById&&!document.all, previousmenuitem:null,

currentpageurl: window.location.href.replace("http://"+window.location.hostname, "").replace(/^\//, ""), //get current page url (minus hostname, ie: http://www.dynamicdrive.com/)

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;

},

showhide:function(obj, e, obj2){ //obj refers to drop down menu, obj2 refers to tab menu item mouse is currently over

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 (obj2.parentNode.className.indexOf("default")==-1) //if tab isn't a default selected one

obj2.parentNode.className="selected"

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.standardbody.scrollLeft+this.standardbody.clientWidth-15 : window.pageXOffset+window.innerWidth-15

this.dropmenuobj.contentmeasure=this.dropmenuobj.offsetWidth

if (windowedge-this.dropmenuobj.x < this.dropmenuobj.contentmeasure) //move menu to the left?

edgeoffset=this.dropmenuobj.contentmeasure-obj.offsetWidth

}

else{

var topedge=this.ie && !window.opera? this.standardbody.scrollTop : window.pageYOffset

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

this.dropmenuobj.contentmeasure=this.dropmenuobj.offsetHeight

if (windowedge-this.dropmenuobj.y < this.dropmenuobj.contentmeasure){ //move up?

edgeoffset=this.dropmenuobj.contentmeasure+obj.offsetHeight

if ((this.dropmenuobj.y-topedge)<this.dropmenuobj.contentmeasure) //up no good either?

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

}

this.dropmenuobj.firstlink.style.borderTopWidth=(edgeoffset==0)? 0 : "1px" //Add 1px top border to menu if dropping up

}

return edgeoffset

},

dropit:function(obj, e, dropmenuID){

if (this.dropmenuobj!=null){ //hide previous menu

this.dropmenuobj.style.visibility="hidden" //hide menu

if (this.previousmenuitem!=null && this.previousmenuitem!=obj){

if (this.previousmenuitem.parentNode.className.indexOf("default")==-1) //If the tab isn't a default selected one

this.previousmenuitem.parentNode.className=""

}

}

this.clearhidemenu()

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

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

obj.onclick=function(){return !tabdropdown.disablemenuclick} //disable main menu item link onclick?

this.dropmenuobj=document.getElementById(dropmenuID)

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

this.dropmenuobj.onmouseout=function(e){tabdropdown.dynamichide(e, obj)}

this.dropmenuobj.onclick=function(){tabdropdown.delayhidemenu(obj)}

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

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.previousmenuitem=obj //remember main menu item mouse moved out from (and into current menu item)

this.positionshim() //call iframe shim function

}

},

contains_firefox:function(a, b) {

while (b.parentNode)

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

return true;

return false;

},

dynamichide:function(e, obj2){ //obj2 refers to tab menu item mouse is currently over

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

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

this.delayhidemenu(obj2)

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

this.delayhidemenu(obj2)

},

delayhidemenu:function(obj2){

this.delayhide=setTimeout(function(){tabdropdown.dropmenuobj.style.visibility='hidden'; if (obj2.parentNode.className.indexOf('default')==-1) obj2.parentNode.className=''},this.disappeardelay) //hide menu

},

clearhidemenu:function(){

if (this.delayhide!="undefined")

clearTimeout(this.delayhide)

},

positionshim:function(){ //display iframe shim 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'

},

var menuurl=menuurl.replace("http://"+menuurl.hostname, "").replace(/^\//, "")

return (tabdropdown.currentpageurl==menuurl)

init:function(menuid, dselected){

this.standardbody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body //create reference to common "body" across doctypes

var menuitems=document.getElementById(menuid).getElementsByTagName("a")

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

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

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

document.getElementById(relvalue).firstlink=document.getElementById(relvalue).getElementsByTagName("a")[0]

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

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

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

}

}

if (dselected=="auto" && typeof setalready=="undefined" && this.isSelected(menuitems[i].href)){

menuitems[i].parentNode.className+=" selected default"

var setalready=true

}

else if (parseInt(dselected)==i)

menuitems[i].parentNode.className+=" selected default"

}

}