function hideshow(__div,imger)
{
   var e=document.getElementById(imger);
  if(document.getElementById('div_'+__div).style.display == 'block')
	{
    	document.getElementById('div_'+__div).style.display = 'none';
	;
	}
  else
	{
    document.getElementById('div_'+__div).style.display = 'block';
	}
}