function show(a)
{t=document.getElementById(a)
t.style.display='inline'
t.style.visibility='visible'
}
function hide(a)
{t=document.getElementById(a)
t.style.display='none'
t.style.visibility='hidden'
}

function selection()
{return document.selection.createRange().text;}

function tag(a)
{
t=document.getElementById('textarea')
s=selection()
if(s=='')
t.value+='['+a+'][/'+a+']'
else
{
if(from!='')
t.value+='['+a+']'+s+'[/'+a+']'
else
t.value=t.value.replace(s,'['+a+']'+s+'[/'+a+']')
}
from=''
}
from=''

function quot()
{
t=document.getElementById('textarea')
s=selection()
if(s=='')
t.value+='[quot][/quot]'
else
{
if(from!='')
{
from=from.firstChild.firstChild.innerHTML
if(from=='')from='Гость'
from+=":\n"
t.value+='[quot]'+from+s+'[/quot]'
}
else
t.value=t.value.replace(s,'[quot]'+s+'[/quot]')
}
from=''
}

function smile(a)
{t=document.getElementById('textarea')
t.value+='::'+a+'::'}

function question(a)
{
if(confirm('Вы уверены?'))
location=a;
}