用javascript使弹出窗口居中，在线等待......马上给分,多谢

Question

a = window.open(...);
a.moveTo(screen.width,screen.height);

Answer 1

<SCRIPT LANGUAGE="JavaScript">
<!--
function centerWindow() {
if (document.all)
var xMax = screen.width, yMax = screen.height;
else
if (document.layers)
var xMax = window.outerWidth, yMax = window.outerHeight;
else
var xMax = 640, yMax=480;var xOffset = (xMax - 200)/2, yOffset = (yMax - 200)/2;window.open('center.htm','myExample7', 'width=200,height=200,screenX='+xOffset+',screenY='+yOffset+', top='+yOffset+',left='+xOffset+'');
}centerWindow();
//-->
</SCRIPT>

Answer 2

a.moveTo((screen.width-a.document.body.offsetWidth)/2,(screen.height-a.document.body.offsetHeight)/2);