if (document.images) {
		menu1on = new Image; menu1on.src = "images/nav1_who_on.gif"; 
		menu2on = new Image; menu2on.src = "images/nav1_physicians_on.gif";
		menu10on = new Image; menu10on.src = "images/nav1_providers_on.gif";
		menu3on = new Image; menu3on.src = "images/nav1_news_on.gif";
		menu4on = new Image; menu4on.src = "images/nav1_employ_on.gif";
		menu5on = new Image; menu5on.src = "images/nav1_insurance_on.gif";
		menu6on = new Image; menu6on.src = "images/nav1_forms_on.gif";
		menu7on = new Image; menu7on.src = "images/nav1_faq_on.gif";
		menu11on = new Image; menu11on.src = "images/nav1_cord_on.gif";
		menu12on = new Image; menu12on.src = "images/nav1_contact_on.gif";
		menu8on = new Image; menu8on.src = "images/nav1_forphys_on.gif";
		menu9on = new Image; menu9on.src = "images/nav1_home_on.gif";
		
		menu1off = new Image; menu1off.src = "images/nav1_who_off.gif"; 
		menu2off = new Image; menu2off.src = "images/nav1_physicians_off.gif";
		menu10off = new Image; menu10off.src = "images/nav1_providers_off.gif";
		menu3off = new Image; menu3off.src = "images/nav1_news_off.gif";
		menu4off = new Image; menu4off.src = "images/nav1_employ_off.gif";
		menu5off = new Image; menu5off.src = "images/nav1_insurance_off.gif";
		menu6off = new Image; menu6off.src = "images/nav1_forms_off.gif";
		menu7off = new Image; menu7off.src = "images/nav1_faq_off.gif";
		menu11off = new Image; menu11off.src = "images/nav1_cord_off.gif";
		menu12off = new Image; menu12off.src = "images/nav1_contact_off.gif";
		menu8off = new Image; menu8off.src = "images/nav1_forphys_off.gif";
		menu9off = new Image; menu9off.src = "images/nav1_home_off.gif";
	}
	
	
	function img_act(imgName) {
		if (document.images) {
			imgOn = eval(imgName + "on.src");
			document [imgName].src = imgOn;
		}
	}
	
	function img_inact(imgName) {
		if (document.images) {
			imgOff = eval(imgName + "off.src");
			document [imgName].src = imgOff;
		}
	}