MediaWiki:Common.js/countdown.js

/* Any JavaScript here will be loaded for all users on every page load. */

// ***************************************************** // * Experimental javascript countdown timer (Splarka) * // * Version 0.0.3                                    * // ***************************************************** // // Usage example: // //  Only January 01 2007 00:00:00 PST until New years. // //  Javascript disabled.

function updatetimer(i) { var now = new Date; var timers = $('span.countdowndate'); var then = new Date($(timers.get(i) ).attr('eventdate')); var diff = count=Math.floor((then.getTime-now.getTime)/1000); // catch bad date strings if(isNaN(diff)) { timers[i].firstChild.nodeValue = '** ' + timers[i].eventdate + ' **' ; return; }

// determine plus/minus if(diff<0) { diff = -diff; var tpm = ''; } else { var tpm = ''; }

// calcuate the diff var left = (diff%60) + ' seconds'; diff=Math.floor(diff/60); if(diff > 0) left = (diff%60) + ' minutes ' + left; diff=Math.floor(diff/60); if(diff > 0) left = (diff%24) + ' hours ' + left; diff=Math.floor(diff/24); if(diff > 0) left = diff + ' days ' + left timers[i].firstChild.nodeValue = tpm + left;

// a setInterval is more efficient, but calling setTimeout // makes errors break the script rather than infinitely recurse timeouts[i] = setTimeout('updatetimer(' + i + ')',1000); }

function checktimers { //hide 'nocountdown' and show 'countdown' var nocountdowns = getElementsByClassName(document, 'span', 'nocountdown'); $('span.nocountdown').css('display', 'none'); $('span.countdown').css('display', 'inline'); timeouts = new Array; // generic holder for the timeouts, global var timers = $('span.countdowndate'); if(timers.length == 0) return;

for(var i = 0; i < timers.length; i++) { $(timers.get(i) ).attr('eventdate', new Date($(timers.get(i)).text)); updatetimer(i); //start it up  } } addOnloadHook(checktimers);

// ************************************************** // - end -  Experimental javascript countdown timer // **************************************************