function newImage(arg) {
  if (document.images) {
    rslt = new Image();
    rslt.src = arg;
    return rslt;
  }
}

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

var preloadFlag = false;
function preloadImages() {
  if (document.images) {
    skatc_whoami_over = newImage("images/skatc_whoami-over.gif");
    skatc_resume_over = newImage("images/skatc_resume-over.gif");
    skatc_portfolio_over = newImage("images/skatc_portfolio-over.gif");
    skatc_projects_over = newImage("images/skatc_projects-over.gif");
    preloadFlag = true;
  }
}

function popup(url) {
  window.open (url,"Screenshot","width=820,height=780,location=0,menubar=0,resizable=0,scrollbars=0,status=0,titlebar=1,toolbar=0");
}

function popupWide(url) {
  window.open (url,"Screenshot","width=1000,height=750,location=0,menubar=0,resizable=0,scrollbars=0,status=0,titlebar=1,toolbar=0");
}