close a child window and refresh the parent window

Parent page (page_load):

string script = @“
function setSearchText(theText)
{
    textBox=document.getElementById({0}).value=theText;
}
“;

this.ClientScript.RegisterClientScriptBlock(this.GetType(), “setSearchText”, string.Format(script,EncodeJsString(txtItemSearch.ClientID)),true);

Child page (the usual place..):

 string script = @” if (window.opener && window.opener.setSearchText)
{
    window.opener.setSearchText({0});
}
window.close();
“;

this.ClientScript.RegisterClientScriptBlock(this.GetType(), “setSearchText”, string.Format(script,EncodeJsString(row.Cells[0].Text)),true);

public static string EncodeJsString(string s)
{
    StringBuilder sb = new StringBuilder();
    sb.Append(“\”");
    foreach (char c in s)
    {
        switch (c)
        {
            case ‘\”‘:
               sb.Append(“\\\”");
                break;
            case ‘\\’:
                sb.Append(“\\\\”);
                break;
            case ‘\b’:
                sb.Append(“\\b”);
                break;
            case ‘\f’:
                sb.Append(“\\f”);
                break;
            case ‘\n’:
                sb.Append(“\\n”);
                break;
            case ‘\r’:
                sb.Append(“\\r”);
                break;
            case ‘\t’:
                sb.Append(“\\t”);
                break;
            default:
                int i = (int)c;
                if (i < 32 || i > 127)
                {
                    sb.AppendFormat(“\\u{0:X04}”, i);
                }
                else
                {
                    sb.Append(c);
                }
                break;
        }
    }
    sb.Append(“\”");

    return sb.ToString();
}