function botaoComprar(id, nome, valor, img, formid){
	if(img==undefined){
		img='imagens/btn_comprar_p.png';
	}
	var s='';
	if(formid!=undefined){
		s='id="'+formid+'"';
	}
	document.writeln('<form '+s+' target="pagseguro" action="https://pagseguro.uol.com.br/security/webpagamentos/webpagto.aspx" method="post">'
		+'<input type="hidden" name="email_cobranca" value="lojavirtual@rmt.com.br">'
		+'<input type="hidden" name="tipo" value="CP">'
		+'<input type="hidden" name="moeda" value="BRL">'
		+'<input type="hidden" name="item_id_1" value="'+id+'">'
		+'<input type="hidden" name="item_descr_1" value="'+nome+'">'
		+'<input type="hidden" name="item_quant_1" value="1">'
		+'<input type="hidden" name="item_valor_1" value="'+valor+'">'
		+'<input type="hidden" name="item_frete_1" value="000">'
		+'<input type="image" src="'+img+'" name="submit" alt="Comprar">'
		+'</form>');
}