//Rich HTML Balloon Tooltip: http://www.dynamicdrive.com/dynamicindex5/balloontooltip.htm
//Created: September 10th, 2006

var disappeardelay=2000  //tooltip disappear delay (in miliseconds)
var verticaloffset=0 //vertical offset of tooltip from anchor link, if any
var enablearrowhead=0 //0 or 1, to disable or enable the arrow image
var arrowheadimg=["arrowdown.gif", "arrowup.gif"] //path to down and up arrow images
var arrowheadheight=11 //height of arrow image (amount to reveal)

/////No further editting needed

var ie=document.all
var ns6=document.getElementById&&!document.all
verticaloffset=(enablearrowhead)? verticaloffset+arrowheadheight : verticaloffset-50
var xmlHttp;

function requestAjax(){
  var friendEmail = escape(document.getElementById('address').value);
  var myName = escape(document.getElementById('name').value);
  var myEmail = escape(document.getElementById('address2').value);
  var pageToSend = escape(document.location);
  var responseP = document.getElementById('response');
  try {
    // Firefox, Opera 8.0+, Safari
    xmlHttp=new XMLHttpRequest();
  }
  catch (e) {
    // Internet Explorer
    try {
      xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
    catch (e) {
      try {
        xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
      }
      catch (e){
        alert("Your browser does not support AJAX!");
        return false;
      }
    }
  }
  xmlHttp.onreadystatechange=function(e){
    if(xmlHttp.readyState==4){
      document.getElementById('emailfriend').style.display="none";
      var inputs = document.getElementsByTagName('input');
      for each (var item in inputs){
        item.value = '';
      }
      var resText = document.createTextNode(xmlHttp.responseText);
      document.getElementById('response').appendChild(resText);
      document.getElementById('response').style.display="inline";
      setTimeout("dropmenuobj.style.visibility='hidden'; dropmenuobj.style.left=0; if (enablearrowhead) tiparrow.style.visibility='hidden'",disappeardelay)
    }
  }
  var emailurl = "emailfriend.php?address="+friendEmail+"&address2="+myEmail+"&page="+pageToSend+"&name="+myName+"&ajax=1";
  //alert(emailurl);
  xmlHttp.open("GET",emailurl,true);
  xmlHttp.send(null); 
}

function getposOffset(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;
}

function showhide(obj, e){
  dropmenuobj.style.left=dropmenuobj.style.top="-500px"
  if (e.type=="mouseover")
    obj.visibility="visible"
}

function iecompattest(){
  return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function clearbrowseredge(obj, whichedge){
  if (whichedge=="rightedge"){
    edgeoffsetx=0
  var windowedge=ie && !window.opera? iecompattest().scrollLeft+iecompattest().clientWidth-15 : window.pageXOffset+window.innerWidth-15
    dropmenuobj.contentmeasure=dropmenuobj.offsetWidth
  if (windowedge-dropmenuobj.x < dropmenuobj.contentmeasure)
    edgeoffsetx=dropmenuobj.contentmeasure-obj.offsetWidth
  return edgeoffsetx
  }
  else{
    edgeoffsety=0
    var topedge=ie && !window.opera? iecompattest().scrollTop : window.pageYOffset
    var windowedge=ie && !window.opera? iecompattest().scrollTop+iecompattest().clientHeight-15 : window.pageYOffset+window.innerHeight-18
    dropmenuobj.contentmeasure=dropmenuobj.offsetHeight
    if (windowedge-dropmenuobj.y < dropmenuobj.contentmeasure) //move up?
      edgeoffsety=dropmenuobj.contentmeasure+obj.offsetHeight+(verticaloffset*2)
    return edgeoffsety
  }
}

function displayballoontip(obj, e){ //main ballooon tooltip function
  if (window.event) event.cancelBubble=true
  else if (e.stopPropagation) e.stopPropagation()
  if (typeof dropmenuobj!="undefined") //hide previous tooltip?
    dropmenuobj.style.visibility="hidden"
  clearhidemenu()
  //obj.onmouseout=delayhidemenu
  dropmenuobj=document.getElementById(obj.getAttribute("rel"))
  showhide(dropmenuobj.style, e)
  dropmenuobj.x=getposOffset(obj, "left")
  dropmenuobj.y=getposOffset(obj, "top")+verticaloffset
  dropmenuobj.style.left=dropmenuobj.x-clearbrowseredge(obj, "rightedge")+"px"
  dropmenuobj.style.top=dropmenuobj.y-clearbrowseredge(obj, "bottomedge")+obj.offsetHeight+"px"
  if (enablearrowhead)
  displaytiparrow()
  document.getElementById('address').focus();
}

function displaytiparrow(){ //function to display optional arrow image associated with tooltip
  tiparrow=document.getElementById("arrowhead")
  tiparrow.src=(edgeoffsety!=0)? arrowheadimg[0] : arrowheadimg[1]
  var ieshadowwidth=(dropmenuobj.filters && dropmenuobj.filters[0])? dropmenuobj.filters[0].Strength-1 : 0
  //modify "left" value depending on whether there's no room on right edge of browser to display it, respectively
  tiparrow.style.left=(edgeoffsetx!=0)? parseInt(dropmenuobj.style.left)+dropmenuobj.offsetWidth-tiparrow.offsetWidth-10+"px" : parseInt(dropmenuobj.style.left)+5+"px"
  //modify "top" value depending on whether there's no room on right edge of browser to display it, respectively
  tiparrow.style.top=(edgeoffsety!=0)? parseInt(dropmenuobj.style.top)+dropmenuobj.offsetHeight-tiparrow.offsetHeight-ieshadowwidth+arrowheadheight+"px" : parseInt(dropmenuobj.style.top)-arrowheadheight+"px"
  tiparrow.style.visibility="visible"
}

function delayhidemenu(){ //This function is modified by Brendan Sullivan @ HCS for use as a popup tooltip
  if ( document.getElementById('address').value != '' || document.getElementById('address2').value != '')
    document.getElementById('submitemail').onClick=function(e){dropmenuobj.style.visibility='hidden'; dropmenuobj.style.left=0; if (enablearrowhead) tiparrow.style.visibility='hidden'}    
  else {
    delayhide=setTimeout("dropmenuobj.style.visibility='hidden'; dropmenuobj.style.left=0; if (enablearrowhead) tiparrow.style.visibility='hidden'",disappeardelay)
  }
}

function clearhidemenu(){
  if (typeof delayhide!="undefined")
    clearTimeout(delayhide)
}

function reltoelement(linkobj){ //tests if a link has "rel" defined and it's the ID of an element on page
  var relvalue=linkobj.getAttribute("rel")
  return (relvalue!=null && relvalue!="" && document.getElementById(relvalue)!=null && document.getElementById(relvalue).className=="balloonstyle")? true : false
}

function initalizetooltip(){
  var all_links=document.getElementsByTagName("a")
  if (enablearrowhead){
    tiparrow=document.createElement("img")
    tiparrow.setAttribute("src", arrowheadimg[0])
    tiparrow.setAttribute("id", "arrowhead")
    document.body.appendChild(tiparrow)
  }
  for (var i=0; i<all_links.length; i++){
    if (reltoelement(all_links[i])){ //if link has "rel" defined and it's the ID of an element on page
      all_links[i].onmouseover=function(e){
        var evtobj=window.event? window.event : e
        displayballoontip(this, evtobj)
      }
      all_links[i].onmouseout=delayhidemenu
    }
  }
}

if (window.addEventListener)
  window.addEventListener("load", initalizetooltip, false)
else if (window.attachEvent)
  window.attachEvent("onload", initalizetooltip)
else if (document.getElementById)
  window.onload=initalizetooltip