document.getElementById(frmObj.id).value=\"\"; document.getElementById(frmObj.id).autofocus; document.getElementById(\"errorMsg\").innerHTML = \"Only numeric value i
In my experience
document.getElementById(frmObj.id).focus();
is good on a browser running on a PC. But on mobile if you want the keyboard to show up so the user can input directly then you also need:
document.getElementById(frmObj.id).select();