$(document).ready(function() {

    SetRollOvers();

    /* open external links in new window */
    $('a[rel=external]').click(function() { window.open(this.href); return false; });

    /* open modal window on login page */
    $(".vip-number-link").colorbox({ width: "520px", inline: true, href: "#vip-number", opacity: 0.2 });

    if ($('#help').length > 0) {
        $('#help').height($('div.wide').height());
    }

});

function SetRollOvers(){
	// usage: add the class 'rollover' to image elements
	jQuery("input[type=image].rollover, a.rollover img, img.rollover").hover(function(){
		    $(this).attr("src",jQuery(this).attr("src").replace(/(\.[^.]+)$/, '-hi$1'));
	    },function(){
		    $(this).attr("src",jQuery(this).attr("src").replace(/-hi(\.[^.]+)$/, '$1'));
	});
}