function do_cool(Total,number,index){
 for (var i = 1; i <= number; i++) {
	  document.getElementById('pht' +Total+ i).background = '';
	  document.getElementById('pht' +Total+ i).className = 'ph_t1';
      document.getElementById('phtab' +Total+ i).style.display = 'none';
 }
 
  document.getElementById('pht' + Total+ index).background = 'images/flink_02.jpg';
  document.getElementById('pht' + Total+ index).className = 'ph_t2'
  document.getElementById('phtab' + Total+ index).style.display = 'block';
}