// JavaScript Document
function printIt(target) { 
  winId=window.open('','printwin','width=250,height=300');
  winId.document.write("<link rel='stylesheet' type='text/css' href='estilos/default_impresion.css' />"); 
  winId.document.write(target); 
  winId.document.close(); 
  winId.focus(); 
  if (window.print) winId.print(); 
  winId.close();//this line is added to close the window after printing
}