How to Call JQuery Function from Asp.Net Code Behind

How to Call JQuery Function from Asp.Net Code Behind

Hi,
 
I have an asp.net composite control. At load (CreateChilds method) i register my jquery script. This script is in a js file and the file is included in page. Function is written to validate input value to a textbox. Textbox is used to enter page number and i want to allow min 1 and max = pagecount values to enter. Not a successfull version but currently i dont have better here it is; (You may direct me to a better one )

  1. function

     ValidateTextBoxInputValue(event, elementID, maxValue) {

    var textBox = document.getElementById(elementID);

    var currentVal = textBox.value;

    var currentSelection = parseInt(String.fromCharCode(event.keyCode), 10);

    if (currentSelection > maxValue) {

    return false;

    }

    if(currentSelection < 1){

    return false;

    }

    return true;

    }

To call this script, my cs code it below;

  1. private

     void RegisterScripts()

    {

    string keydownScript = "ValidateTextBoxInputValue(event," + pageTextBox.ClientID + ", " + pageCount.ToString() + ");";

    pageTextBox.Attributes.Add(

    "OnClientKeyDown", keydownScript);

    }

      Gives no error on page, but dont work.
      I use ie debug tool, inserted break point to function and see that there is no hit. What's my mistake ? Thanks.