function cmsClassSet(id,name_class){
    var p = document.getElementById(id);
    if (p) p.className = name_class;
}

function cmsStepPreview(direct,on){
    if (on){
	cmsClassSet('ar'+direct,'ar-'+direct+'-hover');
	cmsClassSet('preview'+direct,'visible');
    }else{
	cmsClassSet('ar'+direct,'ar-'+direct);
	cmsClassSet('preview'+direct,'hidden');
    }
}

function cmsScrolledToId(id,position){
    var p = document.getElementById(id);
    if (p) p.scrollIntoView(position); // true - top, false - bottom
}