function stakip(idx)
{
 document.getElementById('bottomcolumn').style.display="block";
 document.getElementById('s1').style.fontWeight='normal';
 document.getElementById('s2').style.fontWeight='normal';
 document.getElementById('s3').style.fontWeight='normal';
 document.getElementById('s4').style.fontWeight='normal';
 if(document.getElementById('s0')) {document.getElementById('s0').style.fontWeight='normal';} 

 showhint(idx,'bmiddlesorular');
 if(document.getElementById(idx)) {document.getElementById(idx).style.fontWeight='bold';}

}