function checkAll(group, name, n1, n2)
{
var n1 =  parseInt(n1);
var n2 =  parseInt(n2);
if (document.getElementById(group).checked==true)
{

for (i=n1; i <= n2; i++)
{ 

id=name + i;
document.getElementById(id).checked=true;
}
}
if (document.getElementById(group).checked==false)
{

for (var i=n1; i <= n2; i++)
{ 
id=name + i;
document.getElementById(id).checked=false;
}
}


}