Not minify combination HTML + Javascript

[RohanVirtual]

I have used minify function with all custom functions to minify my combination code which having HTML and Javascript logic in single file, but only HTML is minified not javascript code. I have set minify code given below :

                $htmlMin = new HtmlMin();
                $htmlMin->doRemoveComments(true);
                $htmlMin->doRemoveWhitespaceAroundTags(true);
                $htmlMin->doOptimizeAttributes(true);
                $htmlMin->doRemoveHttpPrefixFromAttributes(true);
                $htmlMin->doRemoveSpacesBetweenTags(true);
                $htmlContent = $htmlMin->minify($htmlContent);