弹出窗口的定义

function openwindow(url,name,iWidth,iHeight)
	{
	var url;//转向网页的地址;
	var name;//网页名称，可为空;
	var iWidth;//弹出窗口的宽度;
	var iHeight;//弹出窗口的高度;
	var iTop = (window.screen.availHeight-30-iHeight)/2; //获得窗口的垂直位置;
	var iLeft = (window.screen.availWidth-10-iWidth)/2; //获得窗口的水平位置;
	window.open(url,name,'height='+iHeight+',,innerHeight='+iHeight+',
        width='+iWidth+',innerWidth='+iWidth+',top='+iTop+',left='+iLeft+',
        toolbar=no,menubar=no,scrollbars=auto,resizeable=no,location=no,
        status=no,alwaysRaised=yes').focus();
	}