<input name="" type="radio" id="checkbox" value="3" οnclick="ChangBgColor(3);a1();a2()" />
<input type=button value=mayor οnclick="myFunc();"> <script language="JavaScript"> <!-- function myFunc(){ a1(); a2(); a3(); a4(); } function a1(){ alert("1") } function a2(){ alert("2") } function a3(){ alert("3") } function a4(){ alert("4") } --> </script>