measurement of string length

[ronlahav]

i have the folowing code
function CheckData(frm)
{
alert((frm.Text_ID.Text));
}
frm.Text_ID - is a textbox in a form - how can i measure its string input length
i have tried frm.Text_ID.length - its not really working
so how can i have the length of the text in the text box.
thanks

[DeadEyes]

alert(String(frm.Text_ID.value).length);

[dynamic_sysop]

function CheckData(frm)
{
alert((frm.Text_ID.Text));
}

change it to this....

function CheckData(frm)
{
window.alert((frm.Text_ID.Text.length));
}

here's an example using a textbox that uses " value " rather than " text "...

<p><FONT face="verdana, arial, helvetica" 
                  size=2>
<INPUT class=bginput tabIndex=1 maxLength=85 size=40 
                  name=title value="testing"></FONT></p>
<p><FONT face="verdana, arial, helvetica" size=2> 


</font> 

<script language="javascript">
window.alert(title.value.length);
</script>

[ronlahav]

altough those solusions didnt help they gave me great direction - and i solved it thak to u!!!!!
thanks