Is Regular Expression the way to go with this?

[Martin C 6]

I have a scraped text that is

 

<h3 class="r"><a href="http://www.domain.com/article/insurance" class="l" onmousedown="return rwt(this,'','','','21','AFQjCNH5_Du8GKgqimnlXXL18fnyNWNi2Q','','0CHMQFjAAOBQ',null,event)"><em>insurance</em> - <em>best deals</em> <b>...</b></a></h3>

 

 

I want to extract whatever the number is which in the above example is '21', but it could be any number from 1 to 100.

 

I don't know what will be in the previous 3 parameters i.e. ,'','','', it could be ,'13','9','something' or even ,'text','text','100'

For the above example I can isolate the parameter I need using ('\d{1,3}')

but that will only work if the first three parameters are going to remain empty, or if they have values that are not numbers.

 

Is there a way that I can get the Reg expression to skip to the 4th comma before searching?

 

Is there a better way to do this?

 

Or is this not a suitable use of Reg expression?

 

 

Any advice would be appreciated

 

Best regards

 

Martin