var popupWindow=null;
function popup(mypage,myname,w,h,pos,infocus){
{LeftPosition=(screen.width)?(screen.width-w)/2:100;TopPosition=(screen.height)?(screen.height-h)/2:100;}
settings='width='+ w + ',height='+ h + ',top=' + TopPosition + ',left=' + LeftPosition + ',scrollbars=yes,location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=yes';popupWindow=window.open('',myname,settings);
if(infocus=='front'){popupWindow.focus();popupWindow.location=mypage;}

}

function poppic(url)
{  
    open(url, '', 'scrollbars=no,resizable=yes,width=500,height=430')
	
}