function popupContact() { 
  var windowprops = "width=450,height=400,top=100,left=100, scrollbars=yes"; 
  var myWin =  window.open( "index.php?p=contact_us", "mynewwin" ,windowprops ); 
}
function popupDisclaimer() { 
  var windowprops = "width=500,height=400,top=100,left=100, scrollbars=yes"; 
  var myWin =  window.open( "index.php?p=disclaimer", "mynewwin" ,windowprops ); 
}