var Ik=0;
if (document.images) {
   N11 = new Image(); N11.src = 'images/navi_01_off.gif';
   N12 = new Image(); N12.src = 'images/navi_01_over.gif';
   N13 = new Image(); N13.src = 'images/navi_01_on.gif';
   N21 = new Image(); N21.src = 'images/navi_02_off.gif';
   N22 = new Image(); N22.src = 'images/navi_02_over.gif';
   N23 = new Image(); N23.src = 'images/navi_03_on.gif';
   N31 = new Image(); N31.src = 'images/navi_03_off.gif';
   N32 = new Image(); N32.src = 'images/navi_03_over.gif';
   N33 = new Image(); N33.src = 'images/navi_03_on.gif';
   N41 = new Image(); N41.src = 'images/navi_04_off.gif';
   N42 = new Image(); N42.src = 'images/navi_04_over.gif';
   N43 = new Image(); N43.src = 'images/navi_04_on.gif';
   N51 = new Image(); N51.src = 'images/navi_05_off.gif';
   N52 = new Image(); N52.src = 'images/navi_05_over.gif';
   N53 = new Image(); N53.src = 'images/navi_05_on.gif';
   N61 = new Image(); N61.src = 'images/navi_06_off.gif';
   N62 = new Image(); N62.src = 'images/navi_06_over.gif';
   N63 = new Image(); N63.src = 'images/navi_06_on.gif';
   N71 = new Image(); N71.src = 'images/navi_07_off.gif';
   N72 = new Image(); N72.src = 'images/navi_07_over.gif';
   N73 = new Image(); N73.src = 'images/navi_07_on.gif';
   N81 = new Image(); N81.src = 'images/navi_08_off.gif';
   N82 = new Image(); N82.src = 'images/navi_08_over.gif';
   N83 = new Image(); N83.src = 'images/navi_08_on.gif';
}

function over( Ix )
{

	   if (document.images){
	   	if(!document.layers)document.images["N"+Ix].src=window["N"+Ix+"2"].src;
	   	else
		   document["IN"+Ix].document.images["N"+Ix].src=window["N"+Ix+"2"].src;
	   }

}
function out( Ix )
{
	if (document.images){
	   	if ( Ix != Ik ){
			document.images["N"+Ix].src=window["N"+Ix+"1"].src;
		}
	}
}