[cl-json-devel] Parsing JavaScript data

I have a web page which has a JavaScript defining some data in a form:

var Categories = [ {name:"Cat1 ", caption:escape("Category 1")}, {name:"Cat2 ", caption:escape("Category 2")} ];

var DB = new Object(); DB[Categories[0].name] = [ {name:escape("Item1"), item-num:8} ];

etc...

When I try to parse it with cl-json (using decode-json-from-string), I got errors because it can't accept things like variable definitions. Can I use cl-json to create a CL data from the JS data I mentioned or I should use some other tool?

Thank you, Andrew