troubleshooting Question

How to put Yes / No option in Javascript alert?

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meetpdFlag for India asked on
14 Comments1 Solution872 ViewsLast Modified:

I am checking whether a textbox has value of zero or not.

If its zero, it should display an alert asking user if they want to enter a non-zero value or not.
If user select yes, then cursor should be placed on that textbox.
If not, then it should do nothing.

My current code (see code section) displays error message but it does not have yes/no option.

How do I achieve that?

if (document.getElementById('ctl00_PageContent_txtEmployment_n0').value == '0' || document.getElementById('ctl00_PageContent_txtEmployment_n0').value == '') {
            alert('Are you sure Point 4 Tax = 0 ?  If not, please enter other value in the textbox.');
            return false;
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