java script to show last lines of textarea

[modelpatel]

Hi every one,

I have a question regarding the lastline in Textarea. I am have build a chat application using the textarea to display the typed messages. Every thing is working fine except once the text range is out of the textarea size I have to scroll down to check for the new messages. Can anyone help me to display the last lines of in textarea always using javascript.


Thanks & Regards,

Bharat

[gits]

hi ...

have a look at the following example:

[CODE=javascript]var n = document.getEle mentById('your_ message_text_ar ea_id');
var end = n.lastChild.off setTop;
window.scrollTo (0, end);[/CODE]
so we refer to the div where you output the messages, and then we refer to its last added child ... and then we scroll to its top position ... note: i assume that it is a div where you assign the messages to? typically you have an input area (to type in) below or before an readonly messages-output 'window' (where the recent messages appear)?

kind regards

[srinivasanm]

HI,

I hope below things will work for you.

[CODE=javascript]obj = document.getEle mentById(divid) ;
var currentScrollHe ight = obj.scrollHeigh t;
obj.scrollTop = (obj.scrollTop + 100000); //set the scroll height to scroll by here.[/CODE]

srini