<script type="text/javascript"> if( !('placeholder' in document.createElement('input')) ){ $('input[placeholder],textarea[placeholder]').each(function(){ var that=$(this), text= that.attr('placeholder'); if(that.val()===""){ that
直接上代码: $(document).ready(function () { var doc = document, textareas = doc.getElementsByTagName('textarea'), supportPlaceholder = 'placeholder' in doc.createElement('textarea'), placeholder = function (textarea) { var text = textarea.getAttribute('pl
/*IE8支持placeholder占位符*/ if( !('placeholder' in document.createElement('input')) ){ $('input[placeholder],textarea[placeholder]').each(function(){ var that = $(this), text= that.attr('placeholder'); if(that.val()===""){ that.val(text).addClass('p
<script type="text/javascript"> if( !('placeholder' in document.createElement('input')) ){ $('input[placeholder],textarea[placeholder]').each(function(){ var that = $(this), text= that.attr('placeholder');