iframe.hideSelect
{
 display:none;/*IE5*/ 
 display/**/:block;/*IE5*/
 position:absolute;
 top:0;
 left:0;
 width: 100%;
 height: 100%; 
 z-index:-1;
 filter:mask();
 background-color: #ffffff;
 border-style: none;                                                                              
}