function doProcess() {
var o = document.getElementById("one"), ddl = document.getElementById("termType")
//兼容FF
var className = typeof (o.getAttribute("className")) == "string" ? "className" : "class"
if (ddl.options[ddl.selectedIndex].value == "1") {
o.setAttribute(className, "hidden")
} else {
o.setAttribute(className, "show")
}
}
</script>
<style type="text/css">
.show
{
display:block
}
.hidden
{
display:none
}
</style>
<div><select name="termType" size="1" id="termType" style="width:150px" onchange="doProcess()">
<option value="1">我要隐藏</option>
<option value="2">我要显示</option>
</select>
<div>
$(document).on('click',function(event){判断event.target 来源dom对象，
如果是你指定的input或者select ,return false
$('xxx').hide()
})
