simple regex for following string
<p>I have a string which looks like </p>

<pre><code>rand_id%3A%3Ftmsid%3D1340496000_EP002960010145_11_0_10050_1_2_10036 
</code></pre>

<p>Now, what I want to do is</p>

<pre><code>extract timestamp: 134049600
        event: EP002960010145
</code></pre>

<p>Now the isseue is there is %3D after tmsid
I dont even know what it is.. but anyways, sometimes its %3D %6D and I think it can be even %16D ??? I cant be sure about that</p>

<p>Is there a robust way to handle these two fields from the above string?</p>

<p>THanks</p>
