use php and javascript?

[Anon]

i have a function of php code so below :
<?
function showtable($i) {
echo"<tr>
....
....
....
<tr>
<td width=\"44%\">
<input type=\"radio\" name=\"choice[$i]\" value=\"1\"
onClick=\"Show('1');\">$choice1
</td>
<td width=\"44%\">
<input type=\"radio\" name=\"choice[$i]\" value=\"2\" onClick=\"Show('2');\">$choice2
</td>
</tr>
...
...
?>

in javascript function so:
<script>
function Show(in)
{
document.write(in);
}
</script>

Q: Why run file php and click radio button and event onClick called function "Show" of java Script . then function "Show" not write data on document and status bar of browser alert Error on page?

[Anon]

nothing to do with php, simple plain js problem ... change the varname of "in" to something different eg. msg and there you go 🙂

function Show(msg)
{
document.write(msg);
}

works ... and why ?? Well have a look at the reserved word of js and you see that "in" is one of them, so you are not allowed to use it as a variable, easy isn't it ?

cya Rob