I know some people that have done it, but I don't know the way. How they have achieved that? surely they have found the way....
this is the code of the page:
<span id="ctl00_ctl00_ctl00_ContentHolder_ContentHolder_ContentHolder_ctl00_SygkentrwtikhPararthmatosView_XMLFileUploader_SelectTextLabel">Επισυναπτόμενο Αρχείο(xml):</span><input type="file" name="ctl00$ctl00$ctl00$ContentHolder$ContentHolder$ContentHolder$ctl00$SygkentrwtikhPararthmatosView$XMLFileUploader$fileUpload" id="ctl00_ctl00_ctl00_ContentHolder_ContentHolder_ContentHolder_ctl00_SygkentrwtikhPararthmatosView_XMLFileUploader_fileUpload" onchange="if (confirm('Αποστολή Αρχείου \'' + this.value + '\';')) { __doPostBack('fileUpload',''); } else {this.value = null;}" />
