function openwin(page,wname,w,h){

	win_set = 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,width='+w+',height='+h;

	swin = window.open(page,wname,win_set);

}

function chosya(_filename) {
	w = 690;
	h = 680;
	x = (screen.width - w) / 2;
	y = (screen.height - h) / 2;
	newWin = window.open(_filename,"","width="+w+",height="+h+",left="+x+",top="+y+",toolbar=no,status=no,menubar=no,scrollbars=no,resizable=no");
}