if (document.images) {
    var nav1off = new Image();
    nav1off.src = "files/nav1on.gif";
    var nav1on = new Image();
    nav1on.src = "files/nav1on.gif";
    var nav1over = new Image();
    nav1over.src = "files/nav1on.gif";

    var nav2off = new Image();
    nav2off.src = "files/nav2on.gif";
    var nav2on = new Image();
    nav2on.src = "files/nav2on.gif";
    var nav2over = new Image();
    nav2over.src = "files/nav2on.gif";

    var nav3off = new Image();
    nav3off.src = "files/nav3on.gif";
    var nav3on = new Image();
    nav3on.src = "files/nav3on.gif";
    var nav3over = new Image();
    nav3over.src = "files/nav3on.gif";

    var nav4off = new Image();
    nav4off.src = "files/nav4on.gif";
    var nav4on = new Image();
    nav4on.src = "files/nav4on.gif";
    var nav4over = new Image();
    nav4over.src = "files/nav4on.gif";


    var nav6off = new Image();
    nav6off.src = "files/nav6on.gif";
    var nav6on = new Image();
    nav6on.src = "files/nav6on.gif";
    var nav6over = new Image();
    nav6over.src = "files/nav6on.gif";

    var nav7off = new Image();
    nav7off.src = "files/nav7on.gif";
    var nav7on = new Image();
    nav7on.src = "files/nav7on.gif";
    var nav7over = new Image();
    nav7over.src = "files/nav7on.gif";
		
  }
  
function navOver(navFoo) {
  if (document.images) {
    document[navFoo].src = eval(navFoo + 'over.src');
  }
}

function navOff(navFoo) {
  if (document.images) {
    document[navFoo].src = eval(navFoo + 'on.src');
  }
}

function nada() {
}

function getBlogged() {
	l = (screen.width / 2) - 300
	t = (screen.height / 2) - 250
  if ((navigator.appName == "Microsoft Internet Explorer") && (navigator.userAgent.indexOf("Mac"))) {
    popupWin = window.open("tour/index.pyra", "getblogged","status=1,resizable=0,scrollbars=0,width=550,height=291,left=" + l + ",top=" + t);
    } else {
    popupWin = window.open("tour/index.pyra", "getblogged","status=1,resizable=0,scrollbars=0,width=550,height=275,left=" + l + ",top=" + t);
  }
}