function changeCheck(el)
{
    var elem = el,
    input = elem.find("input").eq(0);
    if(!input.attr("checked")) {
        elem.css("background-position","0 -15px");
        input.attr("checked", true)
    } else {
        elem.css("background-position","0 0");
        input.attr("checked", false)
    }
    return true;
}
	 
function changeCheckStart(el)
{
    var elem = el,
    input = elem.find("input").eq(0);
    if(input.attr("checked")) {
        elem.css("background-position","0 -15px");
    }
    return true;
}