var img_number=0;
var img_name='';
var ii=0;

var cnt=7; // 

var i_ovr= new Array();
var i_out= new Array();

for( ii = 0 ; ii < cnt ; ii++ ){
i_ovr[ii] = new Image();
i_out[ii] = new Image();
}

// ONmouse
i_ovr[0].src ='../img/top2.gif'; // 
i_ovr[1].src ='../img/topPiano2.gif'; // 
i_ovr[2].src ='../img/topPiano3.gif'; //
i_ovr[3].src ='../img/topproom2.gif'; //
i_ovr[4].src ='../img/topboard2.gif'; //
i_ovr[5].src ='../img/toplink2.gif'; //
i_ovr[6].src ='img/pan3.jpg';

// offmouse
i_out[0].src ='../img/top.gif';
i_out[1].src ='../img/topTuner.gif';
i_out[2].src ='../img/topPiano.gif';
i_out[3].src ='../img/topproom.gif';
i_out[4].src ='../img/topboard.gif';
i_out[5].src ='../img/toplink.gif';
i_out[6].src ='img/pan1.jpg';

function img_over (img_name,img_number){
document.images[img_name].src=i_ovr[img_number].src;
} 

function img_out (img_name,img_number){
document.images[img_name].src=i_out[img_number].src;
}