if (document.images) {
   
     button1 = new Image
     button2 = new Image
	 
	 button3 = new Image
     button4 = new Image
	 
	 button5 = new Image
     button6 = new Image
	 
	 button7 = new Image
     button8 = new Image
	 
	 button9 = new Image
     button10 = new Image
	 
	 button11 = new Image
     button12 = new Image
	 
	 button13 = new Image
     button14 = new Image
	 
	 button15 = new Image
     button16 = new Image
	 
	 button17 = new Image
     button18 = new Image
	 
	 	 
     button1.src = 'images/home.jpg'
     button2.src = 'images/home-hvr.jpg'
	 
	 button3.src = 'images/system.jpg'
     button4.src = 'images/system-hvr.jpg'
	 
	 button5.src = 'images/bill.jpg'
     button6.src = 'images/bill-hvr.jpg'
	 
	 button7.src = 'images/replace.jpg'
     button8.src = 'images/replace-hvr.jpg'
	 
	 button9.src = 'images/repair.jpg'
     button10.src = 'images/repair-hvr.jpg'
	 
	 button11.src = 'images/power.jpg'
     button12.src = 'images/power-hvr.jpg'
	 
	 button13.src = 'images/maintenance.jpg'
     button14.src = 'images/maintenance-hvr.jpg'
	 
	 button15.src = 'images/trip.jpg'
     button16.src = 'images/trip-hvr.jpg'
	 
	 button17.src = 'images/thum_hvacr_today_ace_air.jpg'
     button18.src = 'images/thum_hvacr_today_ace_air1.jpg'	 
}

function openWin(whatfile)
				{
					var url,whatfile;
					url = whatfile + '.cfm';
					childWindow = open(url,'popWin','scrollbars=yes, toolbar=no, directories=no, menubar=no, status=no, width=1000, height=680, left=0, top=0');
					childWindow.focus();
				}