jQuery(document).ready(function(){
	navigation.rollover.init();
});
navigation = {};
navigation.rollover = 
{
	init: function()
	{
		this.preload();
		
		jQuery('#ctaColumn #ctaColumnHead img').hover(
			function () {jQuery(this).attr('src', navigation.rollover.newimage(jQuery(this).attr('src')));},
			function () {jQuery(this).attr('src', navigation.rollover.oldimage(jQuery(this).attr('src')));}
		); },
	
	preload: function()	{ jQuery(window).bind('load', function() { jQuery('#ctaColumn #ctaColumnHead img').each(function(key,elm) { jQuery('<img>').attr('src', navigation.rollover.newimage(jQuery(this).attr('src')));}); }); },
	newimage: function (src){ return src.substring(0, src.search(/(\.[a-z]+)$/)) + '_O' + src.match(/(\.[a-z]+)$/)[0]; },	
	oldimage: function(src){ return src.replace(/_O\./, '.'); }
}