下拉框默认值动态选定

<script>function StorePage(){d=document;t=d.selection?(d.selection.type!='None'?d.selection.createRange().text:''):(d.getSelection?d.getSelection():'');void(keyit=window.open('http://www.365key.com/storeit.aspx?t='+escape(d.title)+'&u='+escape(d.location.href)+'&c='+escape(t),'keyit','scrollbars=no,width=475,height=575,left=75,top=20,status=no,resizable=yes'));keyit.focus();}</script>

标签里添加selected即表示默认选定值

但如何用程序控制,也就是动态生成默认值呢?

网上找了半天都没有直接适合的,不过受到了启发,很简单的实现了,如下代码实现:

用户选择月份,验证输入不合法后返回,下拉框里的默认值更改为用户刚刚选择的

<%String m=String.valueOf(request.getAttribute("m")); %>
				<select name="excel.month" >
					<option value="1" <%="1".equals(m)?"selected":"" %>> 1</option>
					<option value="2" <%="2".equals(m)?"selected":"" %>>2</option>
					<option value="3" <%="3".equals(m)?"selected":"" %>>3</option>
					<option value="4" <%="4".equals(m)?"selected":"" %>>4</option>
					<option value="5" <%="5".equals(m)?"selected":"" %>>5</option>
					<option value="6" <%="6".equals(m)?"selected":"" %>>6</option>
					<option value="7" <%="7".equals(m)?"selected":"" %>>7</option>
					<option value="8" <%="8".equals(m)?"selected":"" %>>8</option>
					<option value="9" <%="9".equals(m)?"selected":"" %>>9</option>
					<option value="10" <%="10".equals(m)?"selected":"" %>>10</option>
					<option value="11" <%="11".equals(m)?"selected":"" %>>11</option>
					<option value="12" <%="12".equals(m)?"selected":"" %>>12</option>
				</select> 
				月