<!--
/* Random Div Display
   Version 1.0
   March 9, 2009
   Will Bontrager
   http://www.willmaster.com/
   Copyright 2009 Bontrager Connection, LLC

For information about implementing this software, see the article at
http://www.willmaster.com/library/javascript/random-div-display.php
*/

// One place to customize:
//
// Type the number of div containers to randomly display.

NumberOfDivsToRandomDisplay = 5;

// No other customizations required.
////////////////////////////////////
var CookieName = 'DivRamdomValueCookie';
function DisplayRandomDiv() {
var r = Math.ceil(Math.random() * NumberOfDivsToRandomDisplay);
if(NumberOfDivsToRandomDisplay > 1) {
   var ck = 0;
   var cookiebegin = document.cookie.indexOf(CookieName + "=");
   if(cookiebegin > -1) {
      cookiebegin += 1 + CookieName.length;
      cookieend = document.cookie.indexOf(";",cookiebegin);
      if(cookieend < cookiebegin) { cookieend = document.cookie.length; }
      ck = parseInt(document.cookie.substring(cookiebegin,cookieend));
      }
   while(r == ck) { r = Math.ceil(Math.random() * NumberOfDivsToRandomDisplay); }
   document.cookie = CookieName + "=" + r;
   }
for( var i=1; i<=NumberOfDivsToRandomDisplay; i++) {
   document.getElementById("randomdiv"+i).style.display="none";
   }
document.getElementById("randomdiv"+r).style.display="block";
}
DisplayRandomDiv();
//-->