I solved problem on my own:
var current_day = new Date();
if(current_day.getDay() == 0){
$(".date-picker").datepicker({
autoclose: true,
startDate: "01/01/2014",
endDate: "+0d",
format: "dd M yyyy"
});
}else if(current_day.getDay() == 1){
$(".date-picker").datepicker({
autoclose: true,
startDate: "01/01/2014",
endDate: "+6d",
format: "dd M yyyy"
});
}else if(current_day.getDay() == 2){
$(".date-picker").datepicker({
autoclose: true,
startDate: "01/01/2014",
endDate: "+5d",
format: "dd M yyyy"
});
}else if(current_day.getDay() == 3){
$(".date-picker").datepicker({
autoclose: true,
startDate: "01/01/2014",
endDate: "+4d",
format: "dd M yyyy"
});
}else if(current_day.getDay() == 4){
$(".date-picker").datepicker({
autoclose: true,
startDate: "01/01/2014",
endDate: "+3d",
format: "dd M yyyy"
});
}else if(current_day.getDay() == 5){
$(".date-picker").datepicker({
autoclose: true,
startDate: "01/01/2014",
endDate: "+2d",
format: "dd M yyyy"
});
}else{
$(".date-picker").datepicker({
autoclose: true,
startDate: "01/01/2014",
endDate: "+1d",
format: "dd M yyyy"
});
}