<!--
b1=new Image()
b1.src="images/home_button.gif"
b1_lit=new Image()
b1_lit.src="images/home_button_lit.gif"
b2=new Image()
b2.src="images/acss_button.gif"
b2_lit=new Image()
b2_lit.src="images/acss_button_lit.gif"
b3=new Image()
b3.src="images/rvad_button.gif"
b3_lit=new Image()
b3_lit.src="images/rvad_button_lit.gif"
b4=new Image()
b4.src="images/order_button.gif"
b4_lit=new Image()
b4_lit.src="images/order_button_lit.gif"
b5=new Image()
b5.src="images/contact_button.gif"
b5_lit=new Image()
b5_lit.src="images/contact_button_lit.gif"
b6=new Image()
b6.src="images/webmaster_button.gif"
b6_lit=new Image()
b6_lit.src="images/webmaster_button_lit.gif"
b7=new Image()
b7.src="images/pow_button.gif"
b7_lit=new Image()
b7_lit.src="images/pow_button_lit.gif"
b8=new Image()
b8.src="images/abcsign_button.gif"
b8_lit=new Image()
b8_lit.src="images/abcsign_button_lit.gif"
b9=new Image()
b9.src="images/ssme_button.gif"
b9_lit=new Image()
b9_lit.src="images/ssme_button_lit.gif"

function filter(imagename,objectsrc)
{if (document.images)
document.images[imagename].src=eval
(objectsrc+".src")}
//-->