Code
<form action="/search/" method="get" id="search_form" >
<input name="q" type="text" id="search_input" class="search_input" />
<input type="image" value="Θρκΰςό τθλόμ" class="search_btn" onmouseout="this.className='search_btn'" onmouseover="this.className='search_btn_hover'" src="/images/spacer00.gif" alt="θρκΰςό τθλόμ νΰ βΰψ ρΰις" title="θρκΰςό τθλόμ νΰ βΰψ ρΰις" />
</form>