function clearText(thefield) {
  if (thefield.defaultValue==thefield.value) thefield.value = "";
}

function popUp(URL) {
  day = new Date();
  id = day.getTime();
  eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=1,width=500,height=500,left = 212,top = 184');");
}

function externalLinks() { 
// Load external links in new window by tagging the link with a rel="external".
  if (!document.getElementsByTagName) return; 

  var anchors = document.getElementsByTagName("a"); 
  for (var i=0; i<anchors.length; i++) { 
    var anchor = anchors[i]; 
    var relvalue = anchor.getAttribute("rel");

    if (anchor.getAttribute("href")) {
      var external = /external/;
      var relvalue = anchor.getAttribute("rel");
      if (external.test(relvalue)) { anchor.target = "_blank"; }
    } 
  }
} 
window.onload = externalLinks;


function getStyle(el,styleProp) {
  var x = document.getElementById(el); 
  if (x.currentStyle) 
    var y = x.currentStyle[styleProp]; 
  else if (window.getComputedStyle) 
    var y = document.defaultView.getComputedStyle(x,null).getPropertyValue(styleProp); 
  return y; 
}

function cycleBannerImages() {
  
  var highestBanner = 9;
  var currentBanner = document.all.bannerWrapper.style.backgroundImage.charAt(25);
  
  if(currentBanner == parseInt(currentBanner)) {
  // If the current string has a number, set it to the next number in the list.
    if(currentBanner >= highestBanner) {
      currentBanner = 1;
    }
    else {
      currentBanner++;
    }
    
    document.all.bannerWrapper.style.backgroundImage = 'url(images/banner-rotate-' + currentBanner + '.jpg)';
  }
  else {
    document.all.bannerWrapper.style.backgroundImage = 'url(images/banner-rotate-1.jpg)';
  }
}