Want to change the state of dropdown in vbscript

Hi, I got the dropdown working in my xslt file.



But now i need to change it via application where i set it enable or disable



How do i do this in vbscript: Please Assist!





















On client side you can use

    z.selectOption(index);
or
    z.setComboValue(value)
    z.setComboText(text);

where z - combo object