use css attributes "filter: alpha(opacity=70);" and "background-image: url(image.png);" on input box

Question

can get both working individually, but am unable to get them working together. this is for use in a windows sidebar gadget.

form:

<form name="llPeople" action="URL" method="get" target="newwindow">
  <input id="phonebook" class="blur" type="text" name="peo_name" size="15" value="Search Phonebook.."
   onFocus="document.getElementById('phonebook').value = ''; document.getElementById('phonebook').className = 'focus';"
   onBlur="document.getElementById('phonebook').value = 'Search Phonebook..'; document.getElementById('phonebook').className = 'blur';" />
 </form>

css:

 #phonebook.focus
  {
   background-image: url(images/searchBack.png);
   background-repeat: no-repeat;
   width: 124px;
   height: 16px;
   position: relative;
  }
#phonebook.blur
  {
   background-image: url(images/searchBackW.png);
   background-repeat: no-repeat;
   width: 124px;
   height: 16px;
   position: relative;
  }
#intranet
  {
   width: 124px;
   height: 16px;
  }  
input
  {
   font-size: 10px;
   filter: alpha(opacity=70);
  }

Answer 1

I think you need a "background-color" because right now it's "transparent" You can probably use:

background-color: #fff;

Answer 2

thanks! adding that above the other properties worked perfectly:

#phonebook.focus
  {
   background-color: #fff;
   background-image: url(images/searchBack.png);
   background-repeat: no-repeat;
   width: 124px;
   height: 16px;
   position: relative;
  }
#phonebook.blur
  {
   background-color: #fff;
   background-image: url(images/searchBackW.png);
   background-repeat: no-repeat;
   width: 124px;
   height: 16px;
   position: relative;
  }