// open a pop up window
function openWindow(sUrl, iWidth, iHeight)
{
	var sWindowString;
	var Xpos= (screen.availWidth - iWidth)/2;
	var Ypos= (screen.availHeight - iHeight)/2-10;
	var dNew = new Date();
	var sRandName = dNew.getUTCMilliseconds();
	sRandName = sRandName.toString();

	sWindowString = "width=" + iWidth + ",height=" + iHeight + ",screenX=" + Xpos + ",screenY="  + Ypos + ",toolbar=1,scrollbars=yes,location=1,directories=0,status=1,menubar=1,resizable=yes";
	newWindow = open(sUrl, sRandName, sWindowString);
	newWindow.moveTo(Xpos, Ypos);
	newWindow.location=sUrl; 
} //openWindow

function showHideForm(divid,aid,action)
{
	if (action == 'show') {
		document.getElementById(divid).style.display="";
		document.getElementById(aid).style.display="none";
	}
	else
	{
		document.getElementById(divid).style.display="none";
		document.getElementById(aid).style.display="";
	}
}