var copyGen = {
	setCopyrightYear: function (searchClass,tag) {

 		var els = document.getElementsByTagName(tag); 
 		var pattern = new RegExp("\\b"+searchClass+"\\b");
 
 		for (i = 0; i < els.length; i++) {
 			if ( pattern.test(els[i].className) ) {
    			var firstYear = els[i].innerHTML;
				var currentYear = new Date();
	
				currentYear = currentYear.getFullYear();
	
				if (currentYear > firstYear) {
	  				els[i].innerHTML = els[i].innerHTML + "" + currentYear;
				}
  			}
 		}
	},	
	
	/*
	*/
	addEvent: function(obj, type, fn) {
		if (obj.addEventListener)
			obj.addEventListener(type, fn, false);
		else if (obj.attachEvent) {
			obj["e"+type+fn] = fn;
			obj[type+fn] = function() {obj["e"+type+fn]( window.event );}
			obj.attachEvent("on"+type, obj[type+fn]);
		}
	}
};

copyGen.addEvent(window, 'load', function(){copyGen.setCopyrightYear("copyright year","span");});