isNN4 = document.layers;
isDOM = document.getElementById;

function printing() {
  if(isNN4 || isDOM) {
    window.print();
  }
}

function CloseWin(){
    window.close();
}

function coupon(){

sub1=window.open("coupon.htm","window2","resizable=no,menubar=no,directories=no,status=no,location=no,width=480,height=550");

}