function set_action(param, act)
{
  param.form.act.value = act;
  param.form.target = '_self';
  param.form.submit();
}

function set_action2(param, action, act)
{
  param.form.action = action;
  param.form.act.value = act;
  param.form.target = '_self';
  param.form.submit();
}

function set_action3(param, action, act, target)
{
  param.form.action = action;
  param.form.act.value = act;
  param.form.target = target;
  param.form.submit();
}

function select_all(param)
{
	
    form_length = param.form.length
    for (i=0;i<form_length;i++)
    {
		if (param.form[i].type == 'checkbox')
        {
            param.form[i].checked = param.form['p_all'].checked
        }
    }
}