function isEMail(field) {
  if (field.search(/^([a-zA-Z0-9_\-\.]+@{1}[\w-_]+(\.[\w_-]+)+)$/)== -1) {
    return false;
  } else {
    return true;
  }
}

function ShowPrinterOrder(a) {
 popup = window.open(a ,'NewWin','toolbar= 0,location= 0,directories= 0,status= 0,menubar= 0,scrollbars= 1,resizable=0,copyhistory= 0,top=10,left=10,width=600,height=800');
}