if (document.images) {
 img1_on =new Image();  img1_on.src ="images/etusivu_on.gif";
 img1_off=new Image();  img1_off.src="images/etusivu_off.gif";

 img2_on =new Image(); img2_on.src ="images/varaosa_on.gif";
 img2_off=new Image(); img2_off.src="images/varaosa_off.gif";

 img3_on =new Image(); img3_on.src ="images/purkuauto_on.gif";
 img3_off=new Image(); img3_off.src="images/purkuauto_off.gif";

 img4_on =new Image(); img4_on.src ="images/osakysely_on.gif";
 img4_off=new Image(); img4_off.src="images/osakysely_off.gif";

 img5_on =new Image(); img5_on.src ="images/yhteystiedot_on.gif";
 img5_off=new Image(); img5_off.src="images/yhteystiedot_off.gif";

 img6_on =new Image(); img6_on.src ="images/ajoohje_on.gif";
 img6_off=new Image(); img6_off.src="images/ajoohje_off.gif";

}

function movr(k) {
 if (document.images) 
  eval('document.img'+k+'.src=img'+k+'_on.src');
}

function mout(k) {
 if (document.images) 
  eval('document.img'+k+'.src=img'+k+'_off.src');
}