if(typeof(imglist)!='undefined'){
var imgs = new Array(); var count;
	for (count=0; count<imglist.length; count++)
	{imgs[count]=new Image(); imgs[count].src="i/" + imglist[count] + "-on.gif";}
}
function roll(imgName) {

	if (document.images) { document[imgName].src = "i/" + imgName + "-on.gif"	}

}

function out(imgName) {

	if (document.images)  {	document[imgName].src = "i/" + imgName + ".gif"	}

}
function mOver(imgName) {

	if (document.images) { document[imgName].src = "i/" + imgName + "-on.jpg"	}

}

function mOut(imgName) {

	if (document.images)  {	document[imgName].src = "i/" + imgName + ".jpg"	}

}
//use the following var to remember an image's original src value
//the imageRoll function will constantly update this value, allowing the imageOut function to use its current value
var imageSourceValue = '';
function imageRoll(imageObject)
{
	//store the current src value
	imageSourceValue = imageObject.src;
	//grab the directory from the src attribute
	var folderIndex = imageObject.src.lastIndexOf("/");
	var theDirectory = imageObject.src.substring(0,folderIndex+1);//returns the DIR in the form http://domain.com/folder
	//test for image file type, jpg v. gif
	var theFileType = imageObject.src.substring(imageObject.src.length-3);//grab the last 3 characters, they represent the file type

	imageObject.src=theDirectory+imageObject.name+'-on.'+theFileType;
}
function imageOut(imageObject)
{
	//retrieve the original image src attribute
	imageObject.src = imageSourceValue;
}
var popUpWin=0;
function popUpWindow(URLStr, left, top, width, height)
{
  if(popUpWin)
  {
	if(!popUpWin.closed) popUpWin.close();
  }
  popUpWin = open(URLStr, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
}
function showSubNav(layerName){
	hideSubNav()
	document.getElementById(layerName).style.visibility='visible';
} 
function hideSubNav(){
	var layerList = new Array('VisitorInfo','Groups','Community','Press','Meetings');
	for (count=0; count<layerList.length; count++){
		document.getElementById(layerList[count]).style.visibility='hidden';
	}
} 
function popGoogleMap(URLStr)
{
	var left =0;
	var top = 0;
	var width = 800;
	var height = 600;

  if(popUpWin)
  {
    if(!popUpWin.closed) popUpWin.close();
  }

  popUpWin = open(URLStr, 'popUpWin', 'toolbar=1,location=no,directories=no,status=no,menubar=no,scrollbars=1,resizable=1,copyhistory=0,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');

}