$(document).ready(function(){
    var products_ul = $('.products #content ul');
    $('.products #presidential').mouseover(function(){ products_ul.css('background-position', 'right -2050px'); });
    $('.products #vega').mouseover(function(){ products_ul.css('background-position', 'right -2450px'); });
    $('.products #the-masters').mouseover(function(){ products_ul.css('background-position', 'right -850px'); });
    $('.products #sierra').mouseover(function(){ products_ul.css('background-position', 'right -1250px'); });
    $('.products #ancient-world').mouseover(function(){ products_ul.css('background-position', 'right -3650px'); });
    $('.products #titan').mouseover(function(){ products_ul.css('background-position', 'right -4050px'); });
    $('.products #mundial').mouseover(function(){ products_ul.css('background-position', 'right -1650px'); });
    $('.products #e-granite').mouseover(function(){ products_ul.css('background-position', 'right -2850px'); });
    $('.products #master-chef').mouseover(function(){ products_ul.css('background-position', 'right -450px'); });
});