isStandardTooltip = function(vTooltip, assert) {
		return (typeof vTooltip === "string" && vTooltip.trim() !== "");
	}
This function checks whether the given tooltip is a standard tooltip or
a MyToolTip
@param  {object | string} vTooltip either a string with text or an instanceof
                  of the MyToolTip
@return {boolean} <code>true</code> if the tooltip is just a string. <false>
                                    if the tooltip is a MyToolTip