$(document).ready(function(){
   $("a.external").click(function(){
   	  window.open(this.href);
		  return false;
	});
	
	$("a.print_in_printer").click(function(){
		var sHrefPrint = $(this).attr("rel");
		print_page(sHrefPrint, 620, 500);
		return false;
	});
});