$(document).ready(function() {
 
isOpen = false
slideHeight = $("#sliderContent").outerHeight();
$("#slider").css("top",-slideHeight+"px")
 
$(".topMenuAction").click( function() {
openClose ()
});
 
$(".topMenuAction-alt").click( function() {
openClose ()
});
 
function openClose () {
if (isOpen) {
$("#slider").animate({top: -slideHeight+"px"}, 500 );
$(".topMenuAction").html('<img src="images/open.png" alt="Open Shopping Bag" />');
$(".topMenuAction-alt").html('View Cart');
isOpen = false
} else {
$("#slider").animate({top: "0px"}, 500 );
$(".topMenuAction").html('<img src="images/close.png" alt="Close Shopping Bag" />');
$(".topMenuAction-alt").html('Close Cart');
isOpen = true
}
}
 
});