How to display more than 1 diagram?

We’ve solved the issue by using global JavaScript variable in this way:

<script type="text/javascript">
    var temp;

    // Click on DevExpress' navigation bar item
    function OnItemClick(s, e) {
        var name = e.item.name;
        temp = name;
        if (e.item.group.name == 'gAjax') {
            CallbackPanel.PerformCallback({ itemName: name });
        }
    }

    function OnEndCallback(s, e) {
        if (temp == "DisplaySchema1")
            initElectricalShema();
        if (temp == "DisplaySchema2")
            initComplexObject();
        if (temp == "DisplaySchema3")
            initDataBindingSimple();
        if (temp == "DisplaySchema4")
            initDataBindingMiddle();

        //initSimpleSchema();
    }
</script>