imgs_on  = new Array;
	imgs_off = new Array;
	
	imgs_on[0]  = new Image;  imgs_on[0].src  = "images/l_about_on.gif";
	imgs_off[0] = new Image;  imgs_off[0].src = "images/l_about_off.gif";

        imgs_on[1]  = new Image;  imgs_on[1].src  = "images/l_solutions_on.gif";
        imgs_off[1] = new Image;  imgs_off[1].src = "images/l_solutions_off.gif";

        imgs_on[2]  = new Image;  imgs_on[2].src  = "images/l_clients_on.gif";
        imgs_off[2] = new Image;  imgs_off[2].src = "images/l_clients_off.gif";

        imgs_on[3]  = new Image;  imgs_on[3].src  = "images/l_training_on.gif";
        imgs_off[3] = new Image;  imgs_off[3].src = "images/l_training_off.gif";

        imgs_on[4]  = new Image;  imgs_on[4].src  = "images/l_team_on.gif";
        imgs_off[4] = new Image;  imgs_off[4].src = "images/l_team_off.gif";

        imgs_on[5]  = new Image;  imgs_on[5].src  = "images/l_work_on.gif";
        imgs_off[5] = new Image;  imgs_off[5].src = "images/l_work_off.gif";

	imgs_on[6]  = new Image;  imgs_on[6].src  = "images/l_work_automation_on.gif";
        imgs_off[6] = new Image;  imgs_off[6].src = "images/l_work_automation_off.gif";

	imgs_on[7]  = new Image;  imgs_on[7].src  = "images/l_market_promo_on.gif";
        imgs_off[7] = new Image;  imgs_off[7].src = "images/l_market_promo_off.gif";

	imgs_on[8]  = new Image;  imgs_on[8].src  = "images/l_sales_on.gif";
        imgs_off[8] = new Image;  imgs_off[8].src = "images/l_sales_off.gif";

	imgs_on[9]  = new Image;  imgs_on[9].src  = "images/l_inventory_on.gif";
        imgs_off[9] = new Image;  imgs_off[9].src = "images/l_inventory_off.gif";

	imgs_on[10]  = new Image;  imgs_on[10].src  = "images/l_field_on.gif";
        imgs_off[10] = new Image;  imgs_off[10].src = "images/l_field_off.gif";
		
		imgs_on[11]  = new Image;  imgs_on[11].src  = "images/l_healthcare_on.gif";
        imgs_off[11] = new Image;  imgs_off[11].src = "images/l_healthcare_off.gif";
		
		imgs_on[12]  = new Image;  imgs_on[12].src  = "images/l_promo_on.gif";
        imgs_off[12] = new Image;  imgs_off[12].src = "images/l_promo_off.gif";
		
		imgs_on[13]  = new Image;  imgs_on[13].src  = "images/l_research_on.gif";
        imgs_off[13] = new Image;  imgs_off[13].src = "images/l_research_off.gif";

	function on(imgName, imgNum)  {
		document[imgName].src = imgs_on[imgNum].src;
	}
	function off(imgName, imgNum) {
		document[imgName].src = imgs_off[imgNum].src;
	}