public static void RegisterTextBoxForDatePicker(Page page, string format, params TextBox[] textBoxes)
     {
         bool allTextBoxNull = true;
         foreach (TextBox textBox in textBoxes)
         {
             if (textBox != null) allTextBoxNull = false;
         }
         if (allTextBoxNull) return;
         page.ClientScript.RegisterClientScriptInclude(page.GetType(), "jquery", "JQuery/jquery.js");
         page.ClientScript.RegisterClientScriptInclude(page.GetType(), "jquery.ui.all", "JQuery/ui/jquery.ui.all.js");
         page.ClientScript.RegisterClientScriptBlock(page.GetType(), "datepickerCss", "");
         StringBuilder sb = new StringBuilder();
         sb.Append("$(document).ready(function() {");
         foreach (TextBox textBox in textBoxes)
         {
             if (textBox != null)
             {
                 sb.Append("$('#" + textBox.ClientID + "').datepicker({dateFormat: \"" + format + "\"});");
             }
         }
         sb.Append("});");
         page.ClientScript.RegisterClientScriptBlock(page.GetType(), "jQueryScript", sb.ToString(), true);
     }