jQuery(document).ready(function() {
	jQuery(".rollover").bind("mouseover", showRollover);
	jQuery(".rollover").bind("mouseout",  hideRollover);
});

function showRollover(event) {
	var offset = jQuery(this).offset();
	var margin = jQuery("#main-container").offset().left;

	name = jQuery(this).attr("id").substring(7);
	bubble = jQuery("#help_" + name);
	jQuery(bubble).css({ top: offset.top - 135, left: offset.left - 140 - margin });
	jQuery(bubble).show();
}

function hideRollover(event) {
	name = jQuery(this).attr("id").substring(7);
	bubble = jQuery("#help_" + name);
	jQuery(bubble).hide();
}