<!--
if (document.images) {

        sales_training_on = new Image(); sales_training_on.src = "images/buttons/sales_training_on.gif";
        sales_training_off = new Image(); sales_training_off.src = "images/buttons/sales_training_off.gif";
        sales_process_on = new Image(); sales_process_on.src = "images/buttons/sales_process_on.gif";
        sales_process_off = new Image(); sales_process_off.src = "images/buttons/sales_process_off.gif";
        training_materials_on = new Image(); training_materials_on.src = "images/buttons/training_materials_on.gif";
        training_materials_off = new Image(); training_materials_off.src = "images/buttons/training_materials_off.gif";
        about_on = new Image(); about_on.src = "images/buttons/about_on.gif";
        about_off = new Image(); about_off.src = "images/buttons/about_off.gif";
        order_on = new Image(); order_on.src = "images/buttons/order_on.gif";
        order_off = new Image(); order_off.src = "images/buttons/order_off.gif";
	
        }

        function imgOn(imgName) {
                if (document.images) {
                        document[imgName].src = eval(imgName + "_on.src");
                }
        }

        function imgOff(imgName) {
                if (document.images) {
                        document[imgName].src = eval(imgName + "_off.src");
                }
        }
      //-->