javascript实现弹出页面窗口最大化

<script language="javascript">
function openwin_full(url) {
    var scrWidth=screen.availWidth;
    var scrHeight=screen.availHeight;
    var self=window.open(url,"PowerBOS","resizable=1");
    self.moveTo(0,0);
    self.resizeTo(scrWidth,scrHeight);
}
</script>

调用上面的方法，所需参数为需要跳转到的URL地址