onCgange i en form

echo "<form method='post' action='".$PHP_SELF."'>";
                        echo "<input type='hidden' name='do_vote' value='yes'>";
                        echo "<input type='radio' name='value' value='1' onChange='this.form.submit()' checked>1";
                        echo "<input type='radio' name='value' value='2' onChange='this.form.submit()'>2";
                        echo "<input type='radio' name='value' value='3' onChange='this.form.submit()'>3";
                        echo "<input type='radio' name='value' value='4' onChange='this.form.submit()'>4";
                        echo "<input type='radio' name='value' value='5' onChange='this.form.submit()'>5";
                        echo "<input type='radio' name='value' value='6' onChange='this.form.submit()'>6";
                        echo "<input type='radio' name='value' value='7' onChange='this.form.submit()'>7";
                        echo "<input type='radio' name='value' value='8' onChange='this.form.submit()'>8";
                        echo "<input type='radio' name='value' value='9' onChange='this.form.submit()'>9";
                        echo "<input type='radio' name='value' value='10' onChange='this.form.submit()'>10";
                        echo "</form>";

Man skal klikke 2 gange nu for at den virker som jeg vil ha det til. Men jeg vil gerne ha at man kun skal klikke en gang for at den aktivere formen