function showHide(sId)
{
oObject = document.getElementById(sId);
oObject.style.display = (oObject.style.display == 'none') ? '' : 'none';
return false;
}
$(document).ready(function() {
    $(".agree").click(function() {
    var attrValue=$(this).next().next().next().attr("disabled");
        if(attrValue)
        {
         $(this).next().next().next().attr("disabled","");
        }
        else
        {
         $(this).next().next().next().attr("disabled","disabled");
        }
    }

    );
});