셀렉트박스로 분류후 검색하는 방법이 있을까요? 채택완료

<div id="search">  </p><p><span class="Apple-tab-span" style="white-space:pre">			</span><h2>커뮤니티</h2><p class="h2p">PL Community</p></p><p><span class="Apple-tab-span" style="white-space:pre">			</span><fieldset id="hd_sch"></p><p><span class="Apple-tab-span" style="white-space:pre">				</span><legend>사이트 내 전체검색</legend></p><p><span class="Apple-tab-span" style="white-space:pre">				</span><select name="sfl" id="sfl"></p><p><span class="Apple-tab-span" style="white-space:pre">				</span>  <option value="wr_subject||wr_content"<?php echo get_selected($_GET['sfl'], "wr_subject||wr_content") ?>>제목+내용</option></p><p><span class="Apple-tab-span" style="white-space:pre">				</span>  <option value="wr_subject"<?php echo get_selected($_GET['sfl'], "wr_subject") ?>>제목</option></p><p><span class="Apple-tab-span" style="white-space:pre">				</span>  <option value="wr_content"<?php echo get_selected($_GET['sfl'], "wr_content") ?>>내용</option></p><p><span class="Apple-tab-span" style="white-space:pre">				</span>  <option value="mb_id"<?php echo get_selected($_GET['sfl'], "mb_id") ?>>회원아이디</option></p><p><span class="Apple-tab-span" style="white-space:pre">				</span>  <option value="wr_name"<?php echo get_selected($_GET['sfl'], "wr_name") ?>>이름</option></p><p><span class="Apple-tab-span" style="white-space:pre">				</span></select></p><p><span class="Apple-tab-span" style="white-space:pre">				</span><form name="fsearchbox" method="get" action="<?php echo G5_BBS_URL ?>/search.php" onsubmit="return fsearchbox_submit(this);"></p><p><span class="Apple-tab-span" style="white-space:pre">				</span><input type="hidden" name="sfl" value="wr_subject||wr_content"></p><p><span class="Apple-tab-span" style="white-space:pre">				</span><input type="hidden" name="sop" value="and"></p><p><span class="Apple-tab-span" style="white-space:pre">				</span><label for="sch_stx" class="sound_only">검색어<strong class="sound_only"> 필수</strong></label></p><p><span class="Apple-tab-span" style="white-space:pre">				</span><input type="text" name="stx" id="sch_stx" maxlength="20"></p><p><span class="Apple-tab-span" style="white-space:pre">				</span><input type="submit" id="sch_submit" value=""></p><p><span class="Apple-tab-span" style="white-space:pre">				</span></form></p><p><span class="Apple-tab-span" style="white-space:pre">				</span><script></p><p><span class="Apple-tab-span" style="white-space:pre">				</span>function fsearchbox_submit(f)</p><p><span class="Apple-tab-span" style="white-space:pre">				</span>{</p><p><span class="Apple-tab-span" style="white-space:pre">					</span>if (f.stx.value.length < 2) {</p><p><span class="Apple-tab-span" style="white-space:pre">						</span>alert("검색어는 두글자 이상 입력하십시오.");</p><p><span class="Apple-tab-span" style="white-space:pre">						</span>f.stx.select();</p><p><span class="Apple-tab-span" style="white-space:pre">						</span>f.stx.focus();</p><p><span class="Apple-tab-span" style="white-space:pre">						</span>return false;</p><p><span class="Apple-tab-span" style="white-space:pre">					</span>}</p><p> </p><p><span class="Apple-tab-span" style="white-space:pre">					</span>// 검색에 많은 부하가 걸리는 경우 이 주석을 제거하세요.</p><p><span class="Apple-tab-span" style="white-space:pre">					</span>var cnt = 0;</p><p><span class="Apple-tab-span" style="white-space:pre">					</span>for (var i=0; i<f.stx.value.length; i++) {</p><p><span class="Apple-tab-span" style="white-space:pre">						</span>if (f.stx.value.charAt(i) == ' ')</p><p><span class="Apple-tab-span" style="white-space:pre">							</span>cnt++;</p><p><span class="Apple-tab-span" style="white-space:pre">					</span>}</p><p> </p><p><span class="Apple-tab-span" style="white-space:pre">					</span>if (cnt > 1) {</p><p><span class="Apple-tab-span" style="white-space:pre">						</span>alert("빠른 검색을 위하여 검색어에 공백은 한개만 입력할 수 있습니다.");</p><p><span class="Apple-tab-span" style="white-space:pre">						</span>f.stx.select();</p><p><span class="Apple-tab-span" style="white-space:pre">						</span>f.stx.focus();</p><p><span class="Apple-tab-span" style="white-space:pre">						</span>return false;</p><p><span class="Apple-tab-span" style="white-space:pre">					</span>}</p><p> </p><p><span class="Apple-tab-span" style="white-space:pre">					</span>return true;</p><p><span class="Apple-tab-span" style="white-space:pre">				</span>}</p><p><span class="Apple-tab-span" style="white-space:pre">				</span></script></p><p><span class="Apple-tab-span" style="white-space:pre">			</span></fieldset></p><p><span class="Apple-tab-span" style="white-space:pre">		</span></div></p><p><span class="Apple-tab-span" style="white-space: pre;">	</span></div><span class="Apple-tab-span" style="white-space: pre;">	</span> <!-- search_box 끝 -->