function SetImage1(IMG) { document.btn1.src= IMG }
function SetImage2(IMG) { document.btn2.src= IMG }
function SetImage3(IMG) { document.btn3.src= IMG }
function SetImage4(IMG) { document.btn4.src= IMG }
function SetImage5(IMG) { document.btn5.src= IMG }
function SetImage6(IMG) { document.btn6.src= IMG }
function SetImage7(IMG) { document.btn7.src= IMG }