How to make a particular Text Bold after a Text : <p>Suppose I have a sample text.
var sample="id:123 Hello How are you id:456 I am fine".</p>

<p>123 and 456 are ids. There can be multiple ids in a sentence. 
So, How to make every id bold in the sentence.
And then after that how to remove "id:" from the sample text.</p>
