.gb_top
{
    width: 630px;
    height: 31px;
    background-image: url(Images/gb_top.png);
    background-repeat: no-repeat;
   
}
.gb_disabled_top
{   width:630px; height:31px;
    background-image: url(Images/gb_disabled_top.png); 
    background-repeat:no-repeat;   
}
.gb_middle
{
    width: 630px;
    background-image: url(Images/gb_middle.png);
    background-repeat: repeat-y;
    text-align: justify;
}
.gb_bottom
{
    width:630px; height:22px;
    background-image: url(Images/gb_bottom.png); 
    background-repeat:no-repeat;   
}