var CustomScript = {
	initialize: function(){
		$.ajaxSetup ({
			  // Disable caching of AJAX responses */
			  cache: false
		});

		CustomScript.disableContextMenu('#big_image_a');
	},
	disableContextMenu: function(sel){
		 $(sel).bind('contextmenu', function(e) {
			 e.stopPropagation();
			  return false;
			});
	}
};

$(document).ready(CustomScript.initialize)