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<form style="display:none" id="quand" action="">
<p>
<input name="j" type="text" size="1" maxlength="2" />
<input name="m" type="text" size="1" maxlength="2" />
<input name="a" type="text" size="1" maxlength="4" />
<input type="button" value="ok" onclick="verif(f['j'].value,f['m'].value,f['a'].value)" />
</p>
</form>
<script type="text/javascript">
document.forms["quand"].style.display="block";
var f=document.forms["quand"].elements;
function verif(j,m,a){
m-=1;
d=new Date(a,m,j);
var rep= (d.getMonth()!=m || d.getFullYear()!=a) ? "date invalide" : "date valide";
alert(rep);
}
</script> |