你能从一个自定义的Kentico全局事件处理程序中执行javascript吗？

using CMS;
using CMS.Base;
using CMS.Helpers;

public class CustomGlobalEventHandler : CMSLoaderAttribute
{
    public override void Init()
    {
        // Subscribe to the PreInit event
        CMSApplication.PreInit += CMSApplication_PreInit;
    }

    private void CMSApplication_PreInit(object sender, EventArgs e)
    {
        // Get the current page context
        PageInfo currentPage = CMSContext.CurrentPage;

        // Get the current request parameters
        string parameterValue = QueryHelper.GetString("parameterName", "");

        // Generate JavaScript code
        string javascriptCode = $"alert('Page: {currentPage.DocumentName}, Parameter: {parameterValue}');";

        // Register the JavaScript code to be executed on the client side
        ScriptHelper.RegisterStartupScript(Page, typeof(string), "CustomScript", ScriptHelper.GetScript(javascriptCode));
    }
}