Fix type of documentElement
Fix type of documentElement

popravich/typescript,fdecampredon/jsx-typescript-old-version,mbebenita/shumway.ts,fdecampredon/jsx-typescript-old-version,mbebenita/shumway.ts,hippich/typescript,fdecampredon/jsx-typescript-old-version,mbebenita/shumway.ts,hippich/typescript,popravich/typescript,popravich/typescript,hippich/typescript