//Pop-it menu- By Dynamic Drive
//For full source code and more DHTML scripts, visit http://www.dynamicdrive.com
//This credit MUST stay intact for use

var linkset=new Array()
//SPECIFY MENU SETS AND THEIR LINKS. FOLLOW SYNTAX LAID OUT

linkset[0]='<div class="menuitems"><a href="http://www.upenn.edu" target="_blank">UPenn</a></div>'
linkset[0]+='<div class="menuitems"><a href="https://sentry.isc.upenn.edu/intouch/" target="_blank">Penn InTouch</a></div>'
linkset[0]+='<div class="menuitems"><a href="http://courseweb.library.upenn.edu" target="_blank">Blackboard</a></div>'

linkset[1]='<div class="menuitems"><a href="http://www.philly.com" target="_blank">Philly.com</a></div>'
linkset[1]+='<div class="menuitems"><a href="http://www.septa.org" target="_blank">SEPTA</a></div>'
linkset[1]+='<div class="menuitems"><a href="http://philadelphia.citysearch.com" target="_blank">Citysearch</a></div>'

////No need to edit beyond here

var ie4=document.all&&navigator.userAgent.indexOf("Opera")==-1
var ns6=document.getElementById&&!document.all
var ns4=document.layers
var ie5mac
if (navigator.appName == "Microsoft Internet Explorer" && parseFloat(navigator.appVersion) < 6.0 ) {
	ie5mac = true
} else {
	ie5mac = false
}


function showmenu(e,which) {
  //alert("showmenu(" +e+ "," +which+ ")")
  if (!document.all&&!document.getElementById&&!document.layers)
    return
  clearhidemenu()
  menuobj=ie4? document.all.popmenu : ns6? document.getElementById("popmenu") : ns4? document.popmenu : ""
  menuobj.thestyle=(ie4||ns6)? menuobj.style : menuobj
  if (ie4||ns6)
    menuobj.innerHTML=which
  else {
    menuobj.document.write('<layer name=gui bgColor=#E6E6E6 width=165 onmouseover="clearhidemenu()" onmouseout="hidemenu()">'+which+'</layer>')
    menuobj.document.close()
  }
  menuobj.contentwidth=(ie4||ns6)? menuobj.offsetWidth : menuobj.document.gui.document.width
  menuobj.contentheight=(ie4||ns6)? menuobj.offsetHeight : menuobj.document.gui.document.height
  eventX=ie4? event.clientX : ns6? e.clientX : e.x
  eventY=ie4? event.clientY : ns6? e.clientY : e.y

  //Find out how close the mouse is to the corner of the window
  var rightedge=ie4? document.body.clientWidth-eventX : window.innerWidth-eventX
  var bottomedge=ie4? document.body.clientHeight-eventY : window.innerHeight-eventY

  //if the horizontal distance isn't enough to accomodate the width of the context menu
  if (rightedge<menuobj.contentwidth)
    //move the horizontal position of the menu to the left by it's width
    menuobj.thestyle.left=ie4? document.body.scrollLeft+eventX-menuobj.contentwidth : ns6? window.pageXOffset+eventX-menuobj.contentwidth : eventX-menuobj.contentwidth
  else
    //position the horizontal position of the menu where the mouse was clicked
    menuobj.thestyle.left=ie4? document.body.scrollLeft+eventX : ns6? window.pageXOffset+eventX : eventX
  menuobj.thestyle.left=115
	
	
  //same concept with the vertical position
  if (bottomedge<menuobj.contentheight)
    menuobj.thestyle.top=ie4? document.body.scrollTop+eventY-menuobj.contentheight : ns6? window.pageYOffset+eventY-menuobj.contentheight : eventY-menuobj.contentheight
  else
    menuobj.thestyle.top=ie4? document.body.scrollTop+event.clientY : ns6? window.pageYOffset+eventY : eventY
  menuobj.thestyle.visibility="visible"
  return false
}

function contains_ns6(a, b) {
  //Determines if 1 element in contained in another- by Brainjar.com
  while (b.parentNode)
    if ((b = b.parentNode) == a)
      return true
  return false
}

function hidemenu(){
  if (window.menuobj)
    menuobj.thestyle.visibility=(ie4||ns6)? "hidden" : "hide"
}

function dynamichide(e){
  if (ie4&&!menuobj.contains(e.toElement))
    hidemenu()
  else if (ns6&&e.currentTarget!= e.relatedTarget&& !contains_ns6(e.currentTarget, e.relatedTarget))
    hidemenu()
}

function delayhidemenu() { 
  if (ie4||ns6||ns4)
    delayhide=setTimeout("hidemenu()",500)
}

function clearhidemenu() {
  if (window.delayhide)
  clearTimeout(delayhide)
}

function highlightmenu(e,state) {
  if (document.all)
    source_el=event.srcElement
  else if (document.getElementById)
    source_el=e.target
  if (source_el.className=="menuitems"){
    source_el.id=(state=="on")? "mouseoverstyle" : ""
  }
  else {
    while(source_el.id!="popmenu"){
      source_el=document.getElementById? source_el.parentNode : source_el.parentElement
      if (source_el.className=="menuitems") {
        source_el.id=(state=="on")? "mouseoverstyle" : ""
      }
    }
  }
}

if (ie4||ns6) document.onclick=hidemenu