baseUrl='../'
pathname =baseUrl + '/images/navbuts/'

var rollSuffix='rol.gif'
var origSuffix='but.gif'
var origTextSuffix='white.gif'
var origDotSuffix='cleardot.gif'
var textSuffix='hi'
var ext ='.gif'

if (document.images) {
	imagesExist=document.images
	} else {
	 imagesExist=null
	}

//CREATE IMAGE ARRAY FOR PRLOAD
if (document.images)  {

var ImageSrc = new Array(
	"white.gif",	
	"landrol.gif",	
	"visitrol.gif",	
	"buildrol.gif",
	"panelrol.gif",
	 "envirorol.gif",
  "teachrol.gif",
  "homerol.gif",

   "homehi.gif",
	"landhi.gif",	
	"visithi.gif",	
	"buildhi.gif",
	"panelhi.gif",
	"envirohi.gif",
  "teachhi.gif",

	"subtitledot.gif",
	"enlarge.gif",
	"cleardot.gif")

var ImageList = new Array()

for (counter in ImageSrc) {

	ImageList[counter] = new Image()
	ImageList[counter].src = pathname + ImageSrc[counter]
	}

}


function off(name,option) {
	if (document.images) {
		if(option!=null)  {
			
		document.images[option].src= pathname + option + origSuffix;
		} else {
		   document.images[name].src= pathname + name + origSuffix;
		}
  		document.images[textSuffix].src= pathname + origTextSuffix;	   		
			
		 
   }		 
}

function on(name,option) {

	if (document.images) {
		 if(option!=null)  { 
		    document.images[option].src= pathname + option + rollSuffix;
		 } else {
      	    document.images[name].src= pathname + name + rollSuffix;
	   } 
	   document.images[textSuffix].src= pathname + name  + textSuffix + ext;	
     
		   	
  }	
}

//used for right menu rollover-pic detail rollover
function hilite(name,rollGraphic,isRolled) {
	if (document.images) {
		if(isRolled)  {

		  document.images[name].src= pathname + rollGraphic + ext;

		} else {
		   
		   document.images[name].src= pathname + origDotSuffix;}
   }		 
}

function closeChildWindow()  {
winNum = closeChildWindow.arguments.length
	for (var i=0; i< winNum; i++) {
		theWindow = closeChildWindow.arguments[i]
 		if(theWindow && theWindow.open && !theWindow.closed)  {
  			theWindow.close() 
 			} else {

			}

		}

}