<!-- hide contents from old browsers
// end hiding contents from old browsers -->
page1_up=new Image;
page1_up.src="page1_up.gif";
page1_down=new Image;
page1_down.src="page1_down.gif"

page2_up=new Image;
page2_up.src="page2_up.gif";
page2_down=new Image;
page2_down.src="page2_down.gif"


page3_up=new Image;
page3_up.src="page3_up.gif";
page3_down=new Image;
page3_down.src="page3_down.gif"

page4_up=new Image;
page4_up.src="page4_up.gif";
page4_down=new Image;
page4_down.src="page4_down.gif"
 
page5_up=new Image;
page5_up.src="page5_up.gif";
page5_down=new Image;
page5_down.src="page5_down.gif"
function img_act(imgName) {
        imgup=eval(imgName+"up.src");
        document [imgName].src= imgup;
        
}

function img_inact(imgName) {
        imgdown=eval(imgName+"down.src");
        document [imgName].src= imgdown;
        
}