function loadContent(item, action, param)
{
    if (param && isNumeric(param)) {
        top.iframe_content.location.href = '../php/'+item+'.php?action='+action+'&id='+param;
    } else if (param) {
        top.iframe_content.location.href = '../php/'+item+'.php?action='+action+'&'+param;
    } else {
        top.iframe_content.location.href = '../php/'+item+'.php?action='+action
    }
}
function orderProduct(item, action, id) {
    loadContent(item, action ,'id='+id);
}