<div id='dnd_single_resource' style='display:none;-moz-opacity:0.75;filter:alpha(opacity=70);'>
 <img border="0" src="images/drag_1.gif"/>
</div>

<div id='dnd_multiple_resources' style='display:none;-moz-opacity:0.75;filter:alpha(opacity=70);'>
 <img border="0" src="images/drag_2.gif"/>
</div>

<div id='dnd_single_folder' style='display:none;-moz-opacity:0.75;filter:alpha(opacity=70);'>
 <img border="0" src="images/drag_folder.gif"/>
</div>


<div id='dnd_not_allowed' style='display:none;-moz-opacity:0.75;filter:alpha(opacity=70);'>
 <img border="0" src="images/no_drop.gif"/>
</div>