Javascript button is not working after the download.

Hi,

I have a simple jsp page with input text fields and select drop downs.
I have 3 buttons. one for submit, download and cancel.
Whenever I click the download button, it will download the csv files (will ask for default popup to open/save/cancel).
Now, when I am clicking the submit/cancel after the download button, I am enountering an issue and the problem is again the default popup is opening and askinfg for download.
I thought the problem miught be with javascript document object and declared the document object globally and I couldn't able to resolve the issue.
Any inputs will be helpful?

<SCRIPT language="JavaScript">

var doc = document;

function csvDownlaod(){
doc.form.cycle.value = "4";
doc.form.submit();
}

function submitResult(){
doc.form.cycle.value = "1";
doc.form.submit();
}

<SCRIPT>

<INPUT TYPE="button" value="Download" onclick="return csvDownlaod();">
Submit

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