InnerHTML & setAttribute for ie6-ie8 that do not suffer from restriction

InnerHTMLie6.js

//innerHTML of these elements in internet explorer are read only:
//COL, COLGROUP, FRAMESET, HEAD, HTML, STYLE, TABLE, TBODY, TFOOT, THEAD, TITLE, TR, SELECT.
  
//example:
// function createtable(deal) 
// {
//  var table = document.createElement('table');
//  table.className='infotable';
//  //table.innerHTML='<tbody><tr><td>123</td></tr></tbody>' // will not work in internet explorer
//  setInnerHTML(table,'<tbody><tr><td>123</td></tr></tbody>')
//  return table;
// }
 
// also:
// eltable.className = "infotable"; // works well in all browsers
//  or
// setAttribute(eltable,'class',"infotable")  // only if you need to use setAttribute for strange values like class.
//



var msie= navigator  &&  navigator.userAgent.match( /MSIE/i )?true:false
var msiever=-1;if(msie){if (/MSIE ([0-9]{1,}[\.0-9]{0,})/.exec(navigator.userAgent) != null) msiever = parseFloat( RegExp.$1 );}

function setAttribute(targetdomobj,name,value)
{
 if(!msie ){targetdomobj.setAttribute(name,value); return;}  // if not msie then it works normal
 
 var attr = document.createAttribute(name);
 attr.value = value;
 targetdomobj.setAttributeNode(attr);
}

//in Internet explorrer you cant set innerHMTL to a table workaround: crate div, append a table, use the table ,delete the div
function setInnerHTML(targetdomobj,html)
{
  if(!msie){targetdomobj.innerHTML=html; return;} // if not msie then it works normal
  if(!setInnerHTML_holderobj)setInnerHTML_holderobj=document.createElement("div");
  var holderobj=setInnerHTML_holderobj;
  
  //innerHTML of these elements in internet explorer are read only:
  //COL, COLGROUP, FRAMESET, HEAD, HTML, STYLE, TABLE, TBODY, TFOOT, THEAD, TITLE, TR, SELECT.
  //not fixed:
  //, , FRAMESET, HEAD, HTML, STYLE, , , , , TITLE, .
  //they .. can be fixed with document.write on iframe, for ie5.5 an existing one
  //
  
  var targettagname=targetdomobj.tagName.toUpperCase();
  if(targettagname=="TR") //html.match( /^\s*\<TD/i)||html.match( /^\s*\<TH/i)
  {
   html='<table><tbody><tr>'+html+'</tr></tbody></table>'
   holderobj.innerHTML=html;
   setInnerHTML_replaceDomChildren(targetdomobj,holderobj,3)
  }
  else if(targettagname=="TBODY") //html.match( /^\s*\<TR/i)
  {
   html='<table><tbody>'+html+'</tbody></table>'
   holderobj.innerHTML=html;
   setInnerHTML_replaceDomChildren(targetdomobj,holderobj,2)
  }
  else if(targettagname=="TABLE") //html.match( /^\s*\<TBODY/i) || html.match( /^\s*\<TFOOT/i) || html.match( /^\s*\<THEAD/i) || html.match( /^\s*\<COLGROUP/i)
  {
   html='<table>'+html+'</table>'
   holderobj.innerHTML=html;
   setInnerHTML_replaceDomChildren(targetdomobj,holderobj,1)
  }
  else if(targettagname=="COLGROUP")//html.match( /^\s*\<COL/i)
  {
   html='<table><colgroup>'+html+'</colgroup></table>'
   holderobj.innerHTML=html;
   setInnerHTML_replaceDomChildren(targetdomobj,holderobj,2)
  }
  else if(targettagname=="SELECT")
  {
   html='<select>'+html+'</select>'
   holderobj.innerHTML=html;
   setInnerHTML_replaceDomChildren(targetdomobj,holderobj,1)
  }
}
var setInnerHTML_holderobj;
function setInnerHTML_replaceDomChildren(targetdomobj,holderobj,level)
{
 // emptytarget
 while (targetdomobj.hasChildNodes())
   targetdomobj.removeChild(targetdomobj.firstChild); 
 // move children from holder to target
 if(level==1)
 {
  while (holderobj.firstChild.hasChildNodes())
   targetdomobj.appendChild( holderobj.firstChild.removeChild(holderobj.firstChild.firstChild) );
 }
 else
 if(level==2)
 {
  while (holderobj.firstChild.firstChild.hasChildNodes())
    targetdomobj.appendChild( holderobj.firstChild.firstChild.removeChild(holderobj.firstChild.firstChild.firstChild) );
 }
 else
 if(level==3)
 {
  while (holderobj.firstChild.firstChild.firstChild.hasChildNodes())
    targetdomobj.appendChild( holderobj.firstChild.firstChild.firstChild.removeChild(holderobj.firstChild.firstChild.firstChild.firstChild) );
 }
 // empty holder object after use
 while (holderobj.hasChildNodes())
   holderobj.removeChild(holderobj.firstChild);
}


//