onValueHelp call Javascript Function

Hi,

I have created an inputfield with a f4-button.

If the button is clicked a javascript function shall be called.

The function has an input parameter.

I tried thid but it doesn't work. I think that the error is located in the last line when

I try to call the function.:

<htmlb:inputField id = "descr_<%= lv_counter %>"

value = "<%= ls_comp-task_descr %>"

maxlength = "40"

submitOnEnter = "FALSE"

showHelp = "X"

onValueHelp = "call_f4_help('descr_' + <%= lv_counter %>);" />

can you help me?

Best regards

Alberto