下拉菜单选择头像

<select onChange="ICON.src=this.options[this.selectedIndex].value;">
<option value=" http://www.blueidea.com/bbs/icon/icon10.gif">ICON1</option>
<option value=" http://www.blueidea.com/bbs/icon/icon2.gif">ICON2</option>
<option value=" http://www.blueidea.com/bbs/icon/icon6.gif">ICON3</option>
<option value=" http://www.blueidea.com/bbs/icon/icon8.gif">ICON4</option>
</select>
<img src="http://www.blueidea.com/bbs/icon/icon10.gif" border="0" id="ICON">