Calculator Sample document.getAnonymousElementByAttribute(this, "anonid", "content") .textContent = this.stringValue; return true; 0 0 0 0 0 M: Clear MC 7 8 9 / MR 4 5 6 * MS 1 2 3 - 1/x M+ 0 +/- + =+ =- =* =/ appareance