Matty doesn't seem to have understood your question.
You can use the ".split" method of a string variable to return an array.
For example:
code:
var blah = "#DoThat;103;208";
var arr = blah.split(";");
var var1 = arr[1]; // note it starts at 0, so arr[0] = #DoThat
var var2 = arr[2]; // var2 will be 208
EDIT: Damn you Dhaya.