if (document.images) {            // Active Images
	        img1on = new Image();      
            img1on.src = "images/nav_about_on.jpg"; 
	        img2on = new Image();      
            img2on.src = "images/nav_team_members_on.jpg"; 
	        img3on = new Image();      
            img3on.src = "images/nav_services_on.jpg"; 
	        img4on = new Image();      
            img4on.src = "images/nav_how_to_buy_on.jpg"; 
	        img5on = new Image();      
            img5on.src = "images/nav_contact_on.jpg";
        	
            img1off = new Image();      
            img1off.src = "images/nav_about.jpg"; 
	        img2off = new Image();      
            img2off.src = "images/nav_team_members.jpg";
	        img3off = new Image();      
            img3off.src = "images/nav_services.jpg";
	        img4off = new Image();      
            img4off.src = "images/nav_how_to_buy.jpg";
	        img5off = new Image();      
            img5off.src = "images/nav_contact.jpg";
        }



// Function to 'activate' images.
function imgOn(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "on.src");
        }
}

// Function to 'deactivate' images.
function imgOff(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "off.src");
        }
}


function openBrWindow(theURL,winName,features) {
  window.open(theURL,winName,features);
}


/* *********************************************** 
OPEN UP CENTERED POPUP WINDOW
*********************************************** */
function OpenPopUpWindow(strURL,strTitle)
{
	var text;
	var str;
	var intWidth = 504;
	var intHeight = 530;
	
	str = "";

	if (window.screen) {
		var ah = screen.availHeight - 30;
		var aw = screen.availWidth - 10;

		var xc = (aw - intWidth) / 2;
		var yc = (ah - intHeight) / 2;

		str += ",left=" + xc + ",screenX=" + xc;
		str += ",top=" + yc + ",screenY=" + yc;
	}

	var objWindow = window.open(strURL, strTitle, "width=" + intWidth + ",height=" + intHeight + ",center,toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=0,copyhistory=0" + str);
}