function retract(el,ptype)
{
if(ptype=="teams")
  {  
 document.getElementById('td1' + el).style.visibility='visible';
 document.getElementById('td2' + el).style.visibility='visible';
 document.getElementById('td3' + el).style.visibility='visible';
 document.getElementById('td4' + el).style.visibility='visible';
 }
if(ptype=="users")
  {  
 document.getElementById('td1' + el).style.visibility='visible';
 document.getElementById('td2' + el).style.visibility='visible';
 document.getElementById('td3' + el).style.visibility='visible';
 } 
document.getElementById('arr' + el).innerHTML="<img src=\"images/arrowright.png\"  onClick=\"expand('"+ el +"','"+ ptype +"');changeclick('"+ el +"','"+ ptype +"');\">";
document.getElementById(el).innerHTML='';
}