function PopCenterDlg(URL, strMessage, aWidth, aHeight)
{ 



	var w = aWidth - 0;
	var h = aHeight - 0;
	
	if ((w == 0) || (w > window.screen.width)) {		w = window.screen.width;	}
	if ((h == 0) || (h > window.screen.height - 40)) {	h = window.screen.height - 40;	}
	var l = window.screen.width  / 2 - w / 2;
	var t = window.screen.height / 2 - h / 2 - 40;

	if (t < 0 ) {	t = 0;	}
	
	var strAnswer = showModalDialog(URL, strMessage, "dialogWidth:"+ w +"px; dialogHeight:"+ h +"px; dialogLeft:"+ l +"; dialogTop:"+ t +"; status:no;help:no");
	return  strAnswer;
}



function open_page(URL, WindowName, aWidth, aHeight, sc)
{
	
	var w = aWidth - 0;
	var h = aHeight - 0;
	
	if ((w == 0) || (w > window.screen.width)) {		w = window.screen.width;	}
	if ((h == 0) || (h > window.screen.height - 40)) {	h = window.screen.height - 40;	}
	var l = window.screen.width  / 2 - w / 2;
	var t = window.screen.height / 2 - h / 2 - 40;

	if (t < 0 ) {	t = 0;	}
	
		if(dd != null) dd.close();
		var dd = window.open(URL, WindowName, "Width="+ w +",Height="+ h +",Left="+ l +",Top="+ t +",status=no,scrollbars="+sc);

}




function goURL(url)
{
	location.href = url;
}