// JavaScript Document
// zebra.js
// customized by langoldberg.com for wiemer.com
// creates a zebra stripe pattern on the table with id= stripe
// prototype functions at the top



var Event = {
	add: function(obj,type,fn) {
		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]);
		} else
		obj.addEventListener(type,fn,false);
	},
	remove: function(obj,type,fn) {
		if (obj.detachEvent) {
			obj.detachEvent('on'+type,obj[type+fn]);
			obj[type+fn] = null;
		} else
		obj.removeEventListener(type,fn,false);
	}
}

function $() {
	var elements = new Array();
	for (var i=0;i<arguments.length;i++) {
		var element = arguments[i];
		if (typeof element == 'string') element = document.getElementById(element);
		if (arguments.length == 1) return element;
		elements.push(element);
	}
	return elements;
}

String.prototype.trim = function() {
	return this.replace(/^\s+|\s+$/,"");
}

function addClassName(el,className) {
	removeClassName(el,className);
	el.className = (el.className + " " + className).trim();
}

function removeClassName(el,className) {
	el.className = el.className.replace(className,"").trim();
}

var ZebraTable = {
	bgcolor: '',
	classname: '',
	stripe: function(el) {
		if (!$(el)) return;
		var rows = $(el).getElementsByTagName('tr');
		for (var i=1,len=rows.length;i<len;i++) {
			if (i % 2 == 0) rows[i].className = 'alt';
			
		}
	}
}

window.onload = function() {
	ZebraTable.stripe('stripe');
}