Add sanity checks for bandwidth scheduler

    enableApply: function() {

        this.btnDiscard.enabled = true;

        if (this.sanityCheck())

            this.btnApply.enabled = true;

        else

            this.btnApply.enabled = false;

    },

    sanityCheck: function() {

        for (var i = 0; i < this.customwidget.length; i++) {

            if (this.timeStart[i].time > this.timeEnd[i].time) {

                this.lineError[i].setText("Start Time must be lesser than End Time");

                this.lineError[i].show();

                return false;

            }

            if (this.cmbUnit[i].currentText == "KB") {

                if (this.spinRate[i].value > 0 && this.spinRate[i].value < 25) {

                    this.lineError[i].setText("Bandwidth Rate must be atleast 25 KB");

                    this.lineError[i].show();

                    return false;

                }

            }

        }

        return true;

    },

    enableRemove: function() {