<style type="text/css">
.placeholder{
color: #cacaca;
}
</style>
<script type="text/javascript">
$(function(){
if(!placeholderSupport()){ // 判断浏览器是否支持 placeholder
$('[placeholder]').focus(function() {
var input = $(this);
if (input.val() == input.attr('placeholder')) {
input.val('');
input.removeClass('placeholder');
}
}).blur(function() {
var input = $(this);
if (input.val() == '' || input.val() == input.attr('placeholder')) {
input.addClass('placeholder');
input.val(input.attr('placeholder'));
}
}).blur();
};
})
function placeholderSupport() {
return 'placeholder' in document.createElement('input');
}
</script>
<input id="keywords" placeholder="请输入名称、地址、组织机构代码等关键字查询"/>
