thumbArray = new Array( 4 );
for( i=0; i < thumbArray.length; i++ ) {
	thumbArray[i] = new Array( 3 );
}

if( document.images ) {
	thumbArray[0][0] = "/gfx/cover/mountain_winter.jpg";
	thumbArray[0][1] = "/gfx/cover/mountain_winter_small.gif";
	thumbArray[0][2] = "/gfx/cover/mountain_winter_small_over.gif";
	thumbArray[1][0] = "/gfx/cover/condos_winter.jpg";
	thumbArray[1][1] = "/gfx/cover/condos_winter_small.gif";
	thumbArray[1][2] = "/gfx/cover/condos_winter_small_over.gif";
	thumbArray[2][0] = "/gfx/cover/condos_summer.jpg";
	thumbArray[2][1] = "/gfx/cover/condos_summer_small.gif";
	thumbArray[2][2] = "/gfx/cover/condos_summer_small_over.gif";
	thumbArray[3][0] = "/gfx/cover/mountain_summer.jpg";
	thumbArray[3][1] = "/gfx/cover/mountain_summer_small.gif";
	thumbArray[3][2] = "/gfx/cover/mountain_summer_small_over.gif";
}

function thumbOver( num ) {
	if( document.images ) {
		for( i=0; i < thumbArray.length; i++ ) {
			if( i == (num-1) ) {
				document.images[ ( 't' + (i+1) ) ].src = thumbArray[i][2];
			} else {
				document.images[ ( 't' + (i+1) ) ].src = thumbArray[i][1];
			}
		}
		document.images[ 'bigPic' ].src = thumbArray[num-1][0];
	}
}