SimplOn DOM ID creation

[dubrox]

The generation of the element ID in TimeSince.php uses the rand() function, which generates a numerical string. That makes a wrong ID value, as a DOM ID should always begin with an alphabetic character.

To generate the DOM elements ID in any SimplOn Element and Data, I think it would be a good idea to add a method to the BaseObject that goes like this:

function ObjectId() {
    return $this->getClassName() . '-' . $this->instanceId();
}

[charlybanya]

#50 Fixed, Thank You for the Tip.
The funcion ObjectID() are now used for the correct generation of ID's