title: ghost text is not working in ie9
body: <p>I am using ghost text in all the browser it is working fine but in ie9 or ie8 not.
  step-1 load the page 
  step-2 enter submit validation message came 
  step3-place the cursor on particular field ghost text is not removing.(w/o enter submit button cursor placed on particular field ghost text is gone off).</p>
  
  <p>My code as below.</p>
  
  <pre><code>&lt;?php
  echo $this-&gt;Form-&gt;input('service_address1', array(
      'id'        =&gt; 'address1',
      'div'       =&gt; false,
      'label'     =&gt; false, 
      'tabindex'  =&gt; '0',
      'class'     =&gt; 'form-bg',
      'maxlength' =&gt; 250,
      'value'     =&gt; 'Address',
      'onblur'    =&gt; "if(this.value=='') { this.value='Address'; }",
      "onfocus"   =&gt; "if(this.value == 'Address') { this.value = ''; }"
  ));
  ?&gt;    
  </code></pre>