// JavaScript Document
<!--
// copyright 1999 Idocs, Inc. http://www.idocs.com
// Distribute this script freely but keep this notice in place
function numbersonly( myfield, e, dec ) {

	var key;
	var keychar;
	
	if ( window.event )
   		key = window.event.keyCode;
	else if ( e )
	   key = e.which;
	else
   		return true;

	keychar = String.fromCharCode ( key );

	// control keys
	if ( ( key == null ) ||
		 ( key == 0 ) ||
		 ( key == 8 ) ||
		 ( key == 9 ) ||
		 ( key == 13 ) ||
		 ( key == 27 ) ) {
		
		return true;

	} else if ( ( ( "0123456789" ).indexOf ( keychar ) > -1 ) ) {

		// numbers
		return true;
		
	} else if ( dec && ( keychar == "." ) ) {
		
		// decimal point jump
		myfield.form.elements[dec].focus();
	   	return false;
	
	} else {
		
		return false;
	}
}
function abre_planos (plano) {
	document.location.href = 'planos_open.php?plano=' + plano;	
}
//-->