// workaround for absence of target attributes in xhtml strict

function externalLinks() {
 if (!document.getElementsByTagName) return;
 var anchors = document.getElementsByTagName("a");
 for (var i=0; i<anchors.length; i++) {
   var anchor = anchors[i];
   if (anchor.getAttribute("href") &&
       anchor.getAttribute("rel") == "external")
     anchor.target = "_blank";
 }
}

// Obfuscate email
function obfuscate(type) {
var obfuscated = '';

if (type == 'email')
	obfuscated = String.fromCharCode(60,97,32,104,114,101,102,61,34,109,97,105,108,116,111,58,100,114,45,98,97,116,64,97,103,114,111,45,103,101,110,101,115,105,115,46,99,111,109,34,62,100,114,45,98,97,116,64,97,103,114,111,45,103,101,110,101,115,105,115,46,99,111,109,60,47,97,62)

document.write(obfuscated);
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}



// equalize heights of left/right floated divs
// add 20 (px) to compensate for bottom padding

/*
Derived from a script by Alejandro Gervasio.
Modified to work in FireFox by Stefan Mischook for Killersites.com

How it works: just apply the CSS class of 'column' to your pages' main columns.
*/
matchColumns=function(){

     var divs,contDivs,maxHeight,divHeight,d;

     // get all <div> elements in the document
     divs=document.getElementsByTagName('div');
     contDivs=[];

     // initialize maximum height value
     maxHeight=0;

     // iterate over all <div> elements in the document
     for(var i=0;i<divs.length;i++){

          // make collection with <div> elements with class attribute 'container'
          if(/\bcolumn\b/.test(divs[i].className)){
                d=divs[i];
                contDivs[contDivs.length]=d;

                // determine height for <div> element
                if(d.offsetHeight){
                     divHeight=d.offsetHeight;
                }

                else if(d.style.pixelHeight){
                     divHeight=d.style.pixelHeight;
                }

                // calculate maximum height
                maxHeight=Math.max(maxHeight,divHeight);
          }
     }

     // assign maximum height value to all of container <div> elements
     for(var i=0;i<contDivs.length;i++){
          contDivs[i].style.height=(maxHeight) + "px";
     }
}


/***********************************************
* AnyLink Drop Down Menu- © Dynamic Drive (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/

var menu_general=new Array()
menu_general[0]='<a href="general_hazards.html"><img src="img/nav_general_hazards_off.gif" alt="Bird Hazards" '
+ 'onmouseover="this.src=\'img/nav_general_hazards_on.gif\'; return true" '
+ 'onmouseout="this.src=\'img/nav_general_hazards_off.gif\'; return true" '
+ '/></a>'
menu_general[1]='<a href="general_methods.html"><img src="img/nav_general_methods_off.gif" alt="Bird Control Methods" '
+ 'onmouseover="this.src=\'img/nav_general_methods_on.gif\'; return true" '
+ 'onmouseout="this.src=\'img/nav_general_methods_off.gif\'; return true" '
+ '/></a>'
menu_general[2]='<a href="general_pest.html"><img src="img/nav_general_pest_off.gif" alt="Pest Bird Species" '
+ 'onmouseover="this.src=\'img/nav_general_pest_on.gif\'; return true" '
+ 'onmouseout="this.src=\'img/nav_general_pest_off.gif\'; return true" '
+ '/></a>'

var menuwidth='104px' //default menu width
var menubgcolor='#ffffff'  //menu bgcolor
var disappeardelay=0  //menu disappear speed onMouseout (in miliseconds)
var hidemenu_onclick="no" //hide menu when user clicks within menu?

/////No further editting needed

var ie4=document.all
var ns6=document.getElementById&&!document.all

if (ie4||ns6)
document.write('<div id="dropmenudiv" style="visibility:hidden;width:'+menuwidth+';" onMouseover="clearhidemenu2(); document.images.nav_general.src=\'img/nav_general_on.gif\'" onMouseout="dynamichide2(event); document.images.nav_general.src=\'img/nav_general_off.gif\'"></div>')
// background-color:'+menubgcolor+'
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 showhide2(obj, e, visible, hidden, menuwidth){
if (ie4||ns6)
dropmenuobj.style.left=dropmenuobj.style.top="-500px"
if (menuwidth!=""){
dropmenuobj.widthobj=dropmenuobj.style
dropmenuobj.widthobj.width=menuwidth
}
if (e.type=="click" && obj.visibility==hidden || e.type=="mouseover")
obj.visibility=visible
else if (e.type=="click")
obj.visibility=hidden
}

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

function clearbrowseredge2(obj, whichedge){
var edgeoffset=0
if (whichedge=="rightedge"){
var windowedge=ie4 && !window.opera? iecompattest().scrollLeft+iecompattest().clientWidth-15 : window.pageXOffset+window.innerWidth-15
dropmenuobj.contentmeasure=dropmenuobj.offsetWidth
if (windowedge-dropmenuobj.x < dropmenuobj.contentmeasure)
edgeoffset=dropmenuobj.contentmeasure-obj.offsetWidth
}
else{
var topedge=ie4 && !window.opera? iecompattest().scrollTop : window.pageYOffset
var windowedge=ie4 && !window.opera? iecompattest().scrollTop+iecompattest().clientHeight-15 : window.pageYOffset+window.innerHeight-18
dropmenuobj.contentmeasure=dropmenuobj.offsetHeight
if (windowedge-dropmenuobj.y < dropmenuobj.contentmeasure){ //move up?
edgeoffset=dropmenuobj.contentmeasure+obj.offsetHeight
if ((dropmenuobj.y-topedge)<dropmenuobj.contentmeasure) //up no good either?
edgeoffset=dropmenuobj.y+obj.offsetHeight-topedge
}
}
return edgeoffset
}

function populatemenu(what){
if (ie4||ns6)
dropmenuobj.innerHTML=what.join("")
}


function dropdownmenu2(obj, e, menucontents, menuwidth){
if (window.event) event.cancelBubble=true
else if (e.stopPropagation) e.stopPropagation()
clearhidemenu2()
dropmenuobj=document.getElementById? document.getElementById("dropmenudiv") : dropmenudiv
populatemenu(menucontents)

if (ie4||ns6){
showhide2(dropmenuobj.style, e, "visible", "hidden", menuwidth)
dropmenuobj.x=getposOffset(obj, "left")
dropmenuobj.y=getposOffset(obj, "top")
dropmenuobj.style.left=dropmenuobj.x-clearbrowseredge2(obj, "rightedge")+"px"
dropmenuobj.style.top=dropmenuobj.y-clearbrowseredge2(obj, "bottomedge")+obj.offsetHeight+"px"
}

return clickreturnvalue2()
}

function clickreturnvalue2(){
if (ie4||ns6) return false
else return true
}

function contains_ns6(a, b) {
while (b.parentNode)
if ((b = b.parentNode) == a)
return true;
return false;
}

function dynamichide2(e){
if (ie4&&!dropmenuobj.contains(e.toElement))
delayhidemenu2()
else if (ns6&&e.currentTarget!= e.relatedTarget&& !contains_ns6(e.currentTarget, e.relatedTarget))
delayhidemenu2()
}

function hidemenu(e){
if (typeof dropmenuobj!="undefined"){
if (ie4||ns6)
dropmenuobj.style.visibility="hidden"
}
}

function delayhidemenu2(){
if (ie4||ns6)
delayhide=setTimeout("hidemenu()",disappeardelay)
}

function clearhidemenu2(){
if (typeof delayhide!="undefined")
clearTimeout(delayhide)
}

if (hidemenu_onclick=="yes")
document.onclick=hidemenu


// run all necessary functions on page load

function loadAll() {
   externalLinks();
   matchColumns();
}
window.onload = loadAll;