function openHelpWindow(url)
{
    helpWindow = window.open(url,'helpwin','width=502,height=325,scrollbars=yes');
}

function closeHelpWindow()
{
    helpWindow.close();
}

function redirect(url)
{
    window.location.replace(url)
}

// From http://www.sitepoint.com/article/standards-compliant-world
function externalLinks() { 
  if (!document.getElementsByTagName) return; 
  var anchors = document.getElementsByTagName("a"); 
  for (var i=0; i < anchors.length; i++) { 
    var anchor = anchors[i]; 
    if (anchor.getAttribute("href") && 
        anchor.getAttribute("rel") == "external") 
      anchor.target = "_blank"; 
  } 
 } 

// Provide a central way to make certain forms clickable only one time.
singleClicker = {
    clicked : false,
    firstClickCheck : function() {
        if (this.clicked) {
            alert('You have already submitted this form.  Click "Reset" or reload this page to be able to submit it again, or continue to wait for the results page to appear.');
            return false;
        } else {
            this.clicked = true;
            return true;
        }
    },
    reset : function() { this.clicked = false; }
}

// http://developer.mozilla.org/en/docs/Using_Firefox_1.5_caching :

function onLoad() {
    // IE calls all of these functions every time a page is visited, either
    // by requesting it or by navigating to it with the back/forward
    // buttons.  Firefox only calls onLoad() whenever it requests a page, not
    // when loading it via back/forward.
    externalLinks();
    onPageShow();
}

function onPageShow() {
    singleClicker.reset();
}

window.onload = onLoad;
window.onpageshow = onPageShow;

<!-- kate: hl JavaScript; -->