function popUp(page,winWidth,winHeight)  {
	var POP;
	var navDiffL = 0;
	var navDiffT = 0;

	navDiffT = (screen.height / 2) - (winHeight / 2);
	navDiffL = (screen.width / 2) - (winWidth / 2);
	if (navDiffT < 0) {
		navDiffT = 0;
	}
	if (navDiffL < 0) {
		navDiffL = 0;
	}
	POP = window.open(page,'pop','menubar=0,toolbar=0,location=0,directories=0,status=no,titlebar=no,scrollbars=1,resizable=1,copyhistory=0,width='+winWidth+',height='+winHeight+',alwaysRaised=1,hotkeys=0,screenx=0,screeny=0,left='+navDiffL+',top='+navDiffT);
	POP.focus();
}