// PRE-LOAD IMAGES AND SET UP SWAPPING //

if (document.images)  {

// ON IMAGES //
homeON = new Image(29,62);
homeON.src = "img/topnav_home_on.gif";
aboutusON = new Image(29,80);
aboutusON.src = "img/topnav_aboutus_on.gif";
contactusON = new Image(29,92);
contactusON.src = "img/topnav_contactus_on.gif";
howtojoinON = new Image(39,238);
howtojoinON.src = "img/nav_howtojoin_on.gif";
membershipON = new Image(30,238);
membershipON.src = "img/nav_membership_on.gif";
calendarON = new Image(29,238);
calendarON.src = "img/nav_calendar_on.gif";
govcontactsON = new Image(30,238);
govcontactsON.src = "img/nav_govcontacts_on.gif";
pacON = new Image(48,238);
pacON.src = "img/nav_pac_on.gif";

// OFF IMAGES //
homeOFF = new Image(29,62);
homeOFF.src = "img/topnav_home_off.gif";
aboutusOFF = new Image(29,80);
aboutusOFF.src = "img/topnav_aboutus_off.gif";
contactusOFF = new Image(29,92);
contactusOFF.src = "img/topnav_contactus_off.gif";
howtojoinOFF = new Image(39,238);
howtojoinOFF.src = "img/nav_howtojoin_off.gif";
membershipOFF = new Image(30,238);
membershipOFF.src = "img/nav_membership_off.gif";
calendarOFF = new Image(29,238);
calendarOFF.src = "img/nav_calendar_off.gif";
govcontactsOFF = new Image(30,238);
govcontactsOFF.src = "img/nav_govcontacts_off.gif";
pacOFF = new Image(48,238);
pacOFF.src = "img/nav_pac_off.gif";
}

function changeImages() {
  if (document.images) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
    }
  }
}

var winPopup=null;

function ShowPopup(strURL,strHeight,strWidth){
	winPopup=window.open(strURL,"","scrollbars=yes,resizable=no,height="+strHeight+",width="+strWidth);
}


function ShowImage(strImage){
	winPopup=window.open("../catalog/catalog_image.aspx?image_filename="+strImage);
}

function closeChildWindow(){
  if(winPopup!=null && !winPopup.closed)winPopup.close();
}

function closeWindow(){
  window.close()
}