function popup(w,h,fix,filename,name) {
	var l=10, t=10;
	if (!w) w=520;
	if (!h) h=400;
	if (h==0) h=screen.availHeight-40;
	if (screen.width) {
		l=(screen.width)?(screen.width-w)/2:0;
		t=(screen.height)?(screen.height-h)/2:0;
		if (t>20) t-=10;
	}	
	if (fix) {
		parm="toolbar=no,scrollbars=no,dependent=yes,location=no,directories=no,status=no,menubar=no,resizable=no,width="+w+",height="+h+",left="+l+",top="+t;		
	} else {
		parm="toolbar=no,scrollbars=yes,dependent=yes,location=no,directories=no,status=no,menubar=no,resizable=yes,width="+w+",height="+h+",left="+l+",top="+t;
	}
	var ppopup=window.open(filename, name, parm);
	if (ppopup) {
		ppopup.resizeTo(w,h);
		ppopup.opener=self;
		ppopup.focus();
	}
}