[CB] Facebook Icon in Mini Profile

This code will allow every user to input their Facebook ID when modifying their profile. A Facebook icon will then appear in their mini-profile.

This is the facebook icon that will be used, you may continue using it or change it via the URL at the top of the code:

Preview One: Click
Preview Two: Click

Cross Browser.

Global Footer.

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<script type="text/javascript">
<!--

/*Facebook Icon in Mini Profile - By iAlex - Open Source*/

var iFaceIcon="http://img210.imageshack.us/img210/9975/ifacebookbn5.gif"; //Facebook mini profile icon

if(document.modifyForm){
      var iAim=document.modifyForm.aim.parentNode.parentNode.parentNode;
      var iFaceTr=iAim.cloneNode(true);
      iFaceTr.childNodes[0].firstChild.innerHTML='Facebook:';
      iFaceTr.childNodes[1].firstChild.innerHTML='<input type="text" size="35" maxlength="15" id="iFaceInp" />';
      iFaceTr.childNodes[2].firstChild.innerHTML='Your Facebook id number here.';
      iAim.parentNode.insertBefore(iFaceTr, iAim);
      var iPerTe=document.modifyForm.personaltext;
      var iFaceInp=document.getElementById('iFaceInp');
      if(iPerTe.value.match(/\[F4:(.+?)\]/)){
            iFaceInp.value=RegExp.$1;
            iPerTe.value=iPerTe.value.replace(/\[F4:(.+?)\]/, '');
      }
      function iSaFa(){
            if(iFaceInp.value!=""){
                  iPerTe.value=iPerTe.value+'[F4:'+iFaceInp.value+']';
            }
      }
      if(document.addEventListener){
            document.modifyForm.addEventListener('submit', iSaFa, false);
      }
      else{
            document.modifyForm.attachEvent('onsubmit', iSaFa);
      }
}
if(location.href.match(/action=(display|(user)?recent|viewprofile|calendarview|search2|pmview)/) || location.href.match(/index.cgi$/) && document.title.match(/Preview/) && document.postForm){
      var iTd=document.getElementsByTagName('td');
      var i=iTd.length;
      while(--i){
            if(iTd.item(i).width=="20%" && iTd.item(i).vAlign=="top" && iTd.item(i).className.match(/windowbg(2)?/) && iTd.item(i).innerHTML.match(/\[F4:(.+?)\]/)){
                  var iCentre=iTd.item(i).getElementsByTagName('center');
                  var iFaSpan=document.createElement('span');
                  iFaSpan.innerHTML='<a href="http://www.facebook.com/profile.php?id='+RegExp.$1+'" target="_blank"><img src="'+iFaceIcon+'" border="0" alt="Facebook" title="Facebook" /></a>';
                  iCentre.item(iCentre.length-1).appendChild(iFaSpan);
                  iTd.item(i).innerHTML=iTd.item(i).innerHTML.replace(/\[F4:(.+?)\]/, '');
            }
      }
}

//-->
</script>

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