function shows(_elem,dir)
{
 
 if(dir)
 {
 	_elem.getElementsByTagName('div')[0].style.display = 'block';
 	_elem.className = "showdetails";
 }
 else
  {
  	_elem.getElementsByTagName('div')[0].style.display  = 'none';
  	_elem.className = "show";
 };

}