Problem with window popup: open before file download

[viki1967]

Hi all.

I have this form:

<form method="POST" action="default.asp?ID=<%=strID%>">    
     <input type="image" src="download.gif">
</form>

I need before the download file open window popup with advice not to change the file name... can you help me?

Kind regards
viki

[acoder]

You could add it onclick (of the image button) or onsubmit (form). You may want to use DHTML instead of a popup window, but if you want a window, use window.open().

[viki1967]

thanks acoder.... one example please ?

[acoder]

It's as simple as adding an onclick to the input image:

<input type="image" src="download.gif" onclick="window.open(...)">

For more details on window.open(), see window.open() - MDC

[viki1967]

thanks... I modify and working... it's correct?

<form method="POST" action="default.asp?ID=<%=strID%>" onsubmit="return(richiama(this));">     
     <input type="image" src="download.gif"> 
</form>

<script language="javascript" type="text/javascript">
<!--

function richiama(parametro)
{
window.open('popup.asp?ID=<%=strID%>','', 'scrollbars=yes,width=550,height=350');
}

//-->
</script>

[acoder]

Should be. You don't need to pass 'this' to the function. If you want to keep a reference to the opened window to close it later, set it to a variable.

[viki1967]

OK... I modify:

<a href="#">
<input type="image" src="download.gif" onclick="if(confirm('OK?')) return(richiama(this)); return false;"></a>

<script language="javascript" type="text/javascript">
<!--

var popup = null;

function richiama()
{
  var w = 350;
  var h = 350;
  
  var pw = Math.floor((screen.width - w) / 2);
  var ph = Math.floor((screen.height - h) / 2);

  if (!popup || popup.closed) 
 popup = window.open("popup.asp", "scelte", "width=" + w + ",height=" + h + ",top=" + ph + ",left=" + pw);
 
  if (popup) popup.focus();
}

//-->
</script>

[acoder]

OK, that's a lot of changes!

You don't need 'this' for the richiama function, so change it to:

return richiama();

What's the link doing on the first line? What happened to the form?

[viki1967]

OK many thanks...
In this page the form was deleted because in the popup.asp I ask confirmation download.
The old form is now in the new page popup.asp

[acoder]

You're using an input element, so it still needs to be inside form tags.

If you're only going to use it for confirmation/information, use confirm/alert instead of opening a pop-up window.

[viki1967]

OK, many thanks for your suggestion!

[acoder]

No problem. My pleasure.