[xsl] Extract String between chars

["Prady Prady prady.chin@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

Team,

I need a template for which, when I pass order number as parameter, I
should get the corresponding IPs. I need this in *XSLT 1.0*

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Eg
Input String : Order1#11.11.11.111;Order2#22.22.22.22;Order3#333.3433.3333;
Param : Order2

Output:
22.22.22.22

Basically it should extract text between # and ; after Order2
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Thank you very much for your help.