Ebasi bugavia forum :))))) Edin source ne moje da postne chovek kato horata.
Eto ti go sourca:

<form>
<INPUT NAME="attachfile" SIZE=48 TYPE="file" style="display: none;" onChange="document.forms[0].attachfake.value = this.value; return true;">
<input type="text" name="attachfake" size="48">
<input type="button" value="Browse" onClick="document.forms[0].attachfile.click();" class=button>
<input type="button" name="attach" value="Add" class="button" onClick="if(document.forms[0].attachfake.value==null||document.forms[0].attachfake.value=='') alert('NULL'); else alert('document.forms[0].attachfake.value : ' + document.forms[0].attachfake.value);document.forms[0].submit();">
</form>