$(document).ready(function(){

		$('img.rubric').each(function()
				{
					this.activesrc = this.src;
					this.passivesrc = this.src;
					if (!( /_o\.jpg$/ ).test(this.src))
					{
						var matches = ( /^(.*)(\.jpg)$/ ).exec(this.src);
						if (matches)
						{
							this.activesrc = matches[1]+'_o'+matches[2];
						}
					}
					
					if (!( /_o\.gif$/ ).test(this.src))
					{
						var matches = ( /^(.*)(\.gif)$/ ).exec(this.src);
						if (matches)
						{
							this.activesrc = matches[1]+'_o'+matches[2];
						}
					}
					
					this.preload = new Image;
					this.preload.src = this.activesrc;
					
				});
				
				$('img.rubric').bind('mouseover', function()
				{
					this.src = this.activesrc;
				});
				
				$('img.rubric').bind('mouseout', function()
				{
					this.src = this.passivesrc;
				});
				
});