fetch textarea id

get id from first textarea in document

[floz]

hi there!

i need a script that fetches the name of the first textarea on a page aswell as the name of the <form it is in...

thing is that i have a web portal with lots of different textareas (with different names) in different forms (with different names) on different pages.

now i would like to use some pre-done scripts for all of them, but they all require the name of the name of the form and the name of the textarea, like for example

if (document.form_name.textarea_name.value.length < 2) { ... }

your help is very appreciated!

[johnl]

hi,

you could try something like

[pre]
function getFirstFormAndFirstTextarea()
 {
 var fs, i, nrf, nrt, tas, txt;
 fs=document.forms;
 tas=document.getElementsByTagName("textarea");
 for (i=0; i<fs.length; i++)
 {
 nrf=i;
 tas=document.getElementsByTagName("textarea");
 for (i=0; i<tas.length; i++)
 {
 nrt=i;
 break;
 }
 break;
 }
 
 if(fs.length==0) txt="doc contains no form";
 else
 {
 txt="first form is form[" + nrf + "] ";
 if(fs[nrf].name=='') txt+="without name";
 else txt+=fs[nrf].name;
 
 txt+="\n"; 
 if(tas.length==0) txt+="form contains no textarea";
 else
 {
 txt+="first textarea is tas[" + nrt + "] ";
 if(tas[nrt].name=='') txt+="without name";
 else txt+=tas[nrt].name; 
 }
 }
alert(txt);
}
[/pre]

[floz]

hey john!

first of all: thx a lot!

now as i am a total newbie in javascript, now that i know the name of the first textfield on the page as well as the name of the form containing it, how do i use this information in the bbcode-code?

for example, on function is

function checkForm() {
formErrors = false;
if (document.forumform.message.value.length < 2) {
formErrors = "Du musst zu deinem Beitrag einen Text eingeben.";
}
if (formErrors) {
alert(formErrors);
return false;
} else {
bbstyle(-1);
return true;
}
}

in there, "forumform" and "message" are the (up to now static) names of the form and the textarea. how do i replace those document.forumform.message occurences with me "dynamically" fetched form- and textarea-names?