function handleEnter (field, event) { 
	var keyCode = event.keyCode ? event.keyCode : event.which ? event.which : event.charCode; 
	if (keyCode == 13) 
	{ 
		var i; 
		for (i = 0; i < field.form.elements.length; i++) 
		if (field == field.form.elements[i]) 
		break; 
		i = field.form.elements[i].tabIndex + 1; 
		for( j = 0 ; j < field.form.elements.length; j++)
		{ 
			if( field.form.elements[j].tabIndex == i)
			{ 
			break; 
			} 
		} 
		field.form.elements[j].focus(); 
		return false; 
	} 
	else 
	return true; 
}