document.write("<div id='search'>");
document.write("<img src='../../img/search.gif' width='80' height='20' border='0' alt='search' title='search'>");
document.write("<select class='form' name='opt'>");
document.write("<option value='Yahoo'>Yahoo");
document.write("<option value='goo'>goo");
document.write("<option value='7-dj'>7-djサイト内");
document.write("</select>");
document.write("<input type='text' name='txt' value='' size='20' class='form'>");
document.write("<input type='submit' name='btn' value='検索'></div>");