var zebraTables = Class.create();
zebraTables.prototype = {
	triggerClass: "hoverRows",
	tables: Object,
	/** INITIALIZE FUNCTION **/
	initialize: function () {
		this.tables = document.getElementsByClassName(this.triggerClass);
		this.tables.each(function(item, index) {
			rows = item.getElementsByTagName('tr');
			this.applyRowsHover(rows);
		}.bind(this));
	},
	/** FUNCTION WALKS OVER THE TABLE ROWS **/
	applyRowsHover: function(rows) {
		tableRows = $A(rows);
		tableRows.each(function(row, index){
			Event.observe(row, 'mouseover', function() { this.addClassName('over');    }, false);
			Event.observe(row, 'mouseout' , function() { this.removeClassName('over'); }, false);
		}.bind(this));
	}
}

Event.observe(window, 'load', function() { var zebraTable = new zebraTables(); zebraTable.initialize; }, false);