var yenix = null;
function popup(a,b,c) {
if(yenix == null || yenix.closed) {
yenix=window.open(a,"outputWindow","menubar=no,top=100, left=300,scrollbars=no,resizable=no,width=400,height=450");
} else {
window.yenix.location=a;
}
}