function val3(field)
{
var valid = "0123456789"
var ok = "yes";
var temp;
for (var i=0; i
temp = "" + field.value.substring(i, i+1);
if (valid.indexOf(temp) == "-1")
ok = "no";
}
if (ok == "no")
{
alert("Invalid entry! Only numbers are accepted!");
}
}
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