JavaScript to check for double click

javascript-to-check-double-click.md

<input type="submit" name="value(submit)" value="Continue" onDblClick="fncDoubleOut();">
<input type="button" name="value(submit)" value="Cancel" onclick="cancel_onclick();" onDblClick="fncDoubleOut();">

function fncDoubleOut(){
   alert('Your transaction is being processed. Thank you.');
   return false;
}

var cancelcount=0;

function checkcancel(){
  if( cancelcount == 0){
    cancelcount++;
    return true;
  } else {
    var sErrMsgNull = 'Your transaction is being processed. Thank you.';
    alert (sErrMsgNull);
    return false;
  }
}

function cancel_onclick(){
  if(checkcancel()){
    document.iBankForm.action="vatransfer.do?value(actions)=vaformentry";
    document.iBankForm.submit();
    return false;
  } else {
    return false;
  }
}