function submit(form)
{
	if( form && form.name )
	{
		switch(form.name)
		{
			case 'search':
				if( form.key.value.trim() == '' )
				{
					alert('Please provide search key.');
				}
				else
				{
					form.action = 'search.php';
					form.submit();
				}
				break;
		}
	}
	
	return false;
}