if (document.images)
   {
     pic1on= new Image(141,24);
     pic1on.src="nav/home_on.gif";
     pic2on= new Image(141,24);
     pic2on.src="nav/pservices_on.gif";
     pic3on= new Image(141,35);
     pic3on.src="nav/installations_on.gif";
     pic5on= new Image(141,24)
     pic5on.src="nav/about_us_on.gif";
     pic6on= new Image(141,24)
     pic6on.src="nav/contact_us_on.gif";
     pic7on= new Image(141,35);
     pic7on.src="nav/mobile_on.gif";
     pic8on= new Image(208,44);
     pic8on.src="nav/used_equipment_on.gif";
     pic9on= new Image(303,42);
     pic9on.src="nav/return_on_new.gif";

     pic1off= new Image(141,24);
     pic1off.src="nav/home_off.gif";
     pic2off= new Image(141,24);
     pic2off.src="nav/pservices_off.gif";
     pic3off= new Image(141,35);
     pic3off.src="nav/installations_off.gif";
     pic5off= new Image(141,24)
     pic5off.src="nav/about_us_off.gif";
     pic6off= new Image(141,24)
     pic6off.src="nav/contact_us_off.gif";
     pic7off= new Image(141,35);
     pic7off.src="nav/mobile_off.gif";
     pic8off= new Image(208,44);
     pic8off.src="nav/used_equipment_off.gif";
     pic9off= new Image(303,42);
     pic9off.src="nav/return_off_new.gif";
   }

function turnon(imgName)
 {
   if (document.images)
    {
      imgOn=eval(imgName + "on.src");
      document[imgName].src= imgOn;
    }
 }

function turnoff(imgName)
 {
   if (document.images)
    {
      imgOff=eval(imgName + "off.src");
      document[imgName].src= imgOff;
    }
 }
 
 /***********************************************
* Pop-it menu- © Dynamic Drive (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/

var defaultMenuWidth="185px" //set default menu width.

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

linkset[0]='<a href="../mobile_sludge_dewatering.htm">Mobile Sludge Dewatering</a>'
linkset[0]+='<a href="../dissolved_air_flotation.htm">Dissolved Air Flotaton Systems</a>'
linkset[0]+='<a href="../filter_presses.htm">Filter Presses (New & Used)</a>'
linkset[0]+='<a href="../automation_and_controls">Automation & Controls</a>'
linkset[0]+='<a href="../batch_treatment_systems.htm">Batch Treatment Systems</a>'
linkset[0]+='<a href="../construction_upgrades.htm">Construction & Upgrades</a>'

////No need to edit beyond here

var ie5=document.all && !window.opera
var ns6=document.getElementById

if (ie5||ns6)
document.write('<div id="popitmenu" onMouseover="clearhidemenu();" onMouseout="dynamichide(event)"></div>')

function iecompattest(){
return (document.compatMode && document.compatMode.indexOf("CSS")!=-1)? document.documentElement : document.body
}

function showmenu(e, which, optWidth){
if (!document.all&&!document.getElementById)
return
clearhidemenu()
menuobj=ie5? document.all.popitmenu : document.getElementById("popitmenu")
menuobj.innerHTML=which
menuobj.style.width=(typeof optWidth!="undefined")? optWidth : defaultMenuWidth
menuobj.contentwidth=menuobj.offsetWidth
menuobj.contentheight=menuobj.offsetHeight
eventX=ie5? event.clientX : e.clientX
eventY=ie5? event.clientY : e.clientY
//Find out how close the mouse is to the corner of the window
var rightedge=ie5? iecompattest().clientWidth-eventX : window.innerWidth-eventX
var bottomedge=ie5? iecompattest().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.style.left=ie5? iecompattest().scrollLeft+eventX-menuobj.contentwidth+"px" : window.pageXOffset+eventX-menuobj.contentwidth+"px"
else
//position the horizontal position of the menu where the mouse was clicked
menuobj.style.left=ie5? iecompattest().scrollLeft+eventX+"px" : window.pageXOffset+eventX+"px"
//same concept with the vertical position
if (bottomedge<menuobj.contentheight)
menuobj.style.top=ie5? iecompattest().scrollTop+eventY-menuobj.contentheight+"px" : window.pageYOffset+eventY-menuobj.contentheight+"px"
else
menuobj.style.top=ie5? iecompattest().scrollTop+event.clientY+"px" : window.pageYOffset+eventY+"px"
menuobj.style.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.style.visibility="hidden"
}

function dynamichide(e){
if (ie5&&!menuobj.contains(e.toElement))
hidemenu()
else if (ns6&&e.currentTarget!= e.relatedTarget&& !contains_ns6(e.currentTarget, e.relatedTarget))
hidemenu()
}

function delayhidemenu(){
delayhide=setTimeout("hidemenu()",350)
}

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

if (ie5||ns6)
document.onclick=hidemenu