function colorMessageIcon(messagesCount) {
	if (messagesCount > 0)
	{
	   //show app message icon in navigation bar in red
	   $( "span.fa-comment" ).parents( "a" ).find("span").eq(0).css( "color", "red" );
	}
	else
	{
	   //show app message icon in navigation bar in white
		$( "span.fa-comment" ).parents( "a" ).find("span").eq(0).css( "color", "#fff" );
	}
}