div.bbCodeName {margin-bottom:3px;}         
div.codeMessage code {font-size:14px;}   

<script type="text/javascript">         
        
function selectCode(a){         
var e=a.parentNode.parentNode.getElementsByTagName('code')[0];         
if(window.getSelection){         
var s=window.getSelection();         
if(s.setBaseAndExtent){         
s.setBaseAndExtent(e,0,e,e.innerText.length-1);         
}else{         
var r=document.createRange();         
r.selectNodeContents(e);         
s.removeAllRanges();         
s.addRange(r);}         
}else if(document.getSelection){         
var s=document.getSelection();         
var r=document.createRange();         
r.selectNodeContents(e);         
s.removeAllRanges();         
s.addRange(r);         
}else if(document.selection){         
var r=document.body.createTextRange();         
r.moveToElementText(e);         
r.select();}}         
// Замена Code на Выделить всё...         
codediv=document.getElementsByTagName('div');         
for(i=0;i<codediv.length;i++){         
if(codediv[i].className=="bbCodeBlock"){         
s=codediv[i].innerHTML;         
s=s.replace(/>Code</g,'>Код: <a href="#" onclick="selectCode(this);return false;">Выделить всё<\/a><').replace('<!--uzc-->','<!--uzc--><code>').replace('<!--\/uzc-->','<\/code><!--\/uzc-->');         
codediv[i].innerHTML=s;}}         
</script>