function PopUp(b_day,b_hour,e_day,e_hour)
{
    b_hour=b_hour*1; e_hour=e_hour*1;
    if(b_hour>=0 && b_hour<=24  && e_hour>=0 && e_hour<=24)
    {
	var day=new Date();
	var hour=new Date();
	day=(day.getDay());
	hour=(hour.getHours())
	ent=false;
    
	if (weekday[b_day]>weekday[e_day]) {weekday[e_day]=weekday[e_day]+7; if (weekday[b_day]>day) day=day+7;}
	
	if (day>weekday[b_day] && day<weekday[e_day]) ent=true;
	else if (weekday[b_day] == weekday[e_day])
	{
	    //ent=true; //Если нужно чтобы всю неделю выскакивало окно
	    if (hour>=b_hour && hour<e_hour && day==weekday[b_day]) ent=true;
	}
	else if (day==weekday[b_day] && hour>=b_hour) ent=true;
	else if (day==weekday[e_day] && hour<e_hour) ent=true;
	
	if (ent)document.getElementById("popup").style.display="block";
	//alert(weekday[b_day]+" "+day+" "+weekday[e_day]+" | "+b_hour+" "+hour+" "+e_hour);
    }
    else alert("Не правильный формат дат");
}
var weekday=new Array(7);
weekday["Воскресенье"]=0;
weekday["Понедельник"]=1;
weekday["Вторник"]=2;
weekday["Среда"]=3;
weekday["Четверг"]=4;
weekday["Пятница"]=5;
weekday["Суббота"]=6;