First of all, is that an HTML button, or a Java Applet button.
Regardless, neither have anything that corresponds to a double click. In the
context of a button, a double click doesn't really mean anything - so there is
no OnDoubleClick() or similar handler.
However, one of the easiest things to do would be to set a flag that indicates
if the button has been clicked or not.
If you are talking about an HTML form button, I guess you are using a SUBMIT
input element.
Instead, you could use a BUTTON element that calls a JavaScript function that
will submit the form only if the flag is not set.
For example,
<HEAD>
<SCRIPT LANGUAGE="JavaScript">
function SubmitForm()
{
if(bSubmitted==false)
{
bSubmitted=true;
document.forms[0].submit();
}
else
{
alert("I told you not to click twice!!! Go and buy AOL for
Dummies");
document.location="http://www.amazon.com";
}
}
</SCRIPT>
</HEAD>
<BODY OnLoad="bSubmitted=false">
<FORM ACTION="servlet_url">
<INPUT TYPE="Button" VALUE="Click Me" OnClick="SubmitForm()">
</FORM>
</BODY>
Jack wrote:
> I created a button that would call a servlet.
>
> How can I prevent the user to double click the button that will
> call the servlet twice?
>
> Thanks.
>
> Jack
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