i have this search box..

HTML:
<div class="searchbox"><input type="text" name="searchbox" id="searchbox"></div>
<div class="searchbtn"><input name="search" type="button" value="Search"></div>

CSS:
#.searchbox input {
background-image: url('searchbg.png');
width: 238px;
height: 24px;
float: left;
padding: 2px;
border: 0;
outline:none;
}

.searchbtn input {
background-image: url('searchbtn.png');
color: #fff;
font-weight: bold;
width: 86px;
height: 24px;
border: 0;
float: left;
}

it looks nice and sweet however when i type something in it it doesnt do anyhting.. how to make it search in my website?