// program 4 subnav buttons
		subnav1 = new Image();
		subnav1.src = "images/lm_btn_bios.gif";
		subnav1_hi = new Image();
		subnav1_hi.src = "images/lm_btn_bios_hi.gif";
		
		subnav2 = new Image();
		subnav2.src = "images/lm_btn_serieslocations.gif";
		subnav2_hi = new Image();
		subnav2_hi.src = "images/lm_btn_serieslocations_hi.gif";
		
		subnav3 = new Image();
		subnav3.src = "images/lm_btn_programessays.gif";
		subnav3_hi = new Image();
		subnav3_hi.src = "images/lm_btn_programessays_hi.gif";