text: /* Nifty Corners Cube - rounded corners with CSS and Javascript
  Copyright 2006 Alessandro Fulciniti (a.fulciniti@html.it)
  
  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.
  
  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.
  
  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
  
  var niftyOk=(document.getElementById && document.createElement && Array.prototype.push);
  var niftyCss=false;
  
  String.prototype.find=function(what){
  return(this.indexOf(what)>=0 ? true : false);
  }
  
  var oldonload=window.onload;
  if(typeof(NiftyLoad)!='function') NiftyLoad=function(){};
  if(typeof(oldonload)=='function')
      window.onload=function(){oldonload();AddCss();NiftyLoad()};
  else window.onload=function(){AddCss();NiftyLoad()};
  
  function AddCss(){
  niftyCss=true;
  var l=CreateEl("link");
  l.setAttribute("type","text/css");
  l.setAttribute("rel","stylesheet");
  l.setAttribute("href","stylesheets/niftyCorners.css");
  l.setAttribute("media","screen");
  document.getElementsByTagName("head")[0].appendChild(l);
  }
  
  function Nifty(selector,options){
  if(niftyOk==false) return;
  if(niftyCss==false) AddCss();
  var i,v=selector.split(","),h=0;
  if(options==null) options="";
  if(options.find("fixed-height"))
      h=getElementsBySelector(v[0])[0].offsetHeight;
  for(i=0;i<v.length;i++)
      Rounded(v[i],options);
  if(options.find("height")) SameHeight(selector,h);
  }
  
  function Rounded(selector,options){
  var i,top="",bottom="",v=new Array();
  if(options!=""){
      options=options.replace("left","tl bl");
      options=options.replace("right","tr br");
      options=options.replace("top","tr tl");
      options=options.replace("bottom","br bl");
      options=options.replace("transparent","alias");
      if(options.find("tl")){
          top="both";
          if(!options.find("tr")) top="left";
          }
      else if(options.find("tr")) top="right";
      if(options.find("bl")){
          bottom="both";
          if(!options.find("br")) bottom="left";
          }
      else if(options.find("br")) bottom="right";
      }
  if(top=="" && bottom=="" && !options.find("none")){top="both";bottom="both";}
  v=getElementsBySelector(selector);
  for(i=0;i<v.length;i++){
      FixIE(v[i]);
      if(top!="") AddTop(v[i],top,options);
      if(bottom!="") AddBottom(v[i],bottom,options);
      }
  }
  
  function AddTop(el,side,options){
  var d=CreateEl("b"),lim=4,border="",p,i,btype="r",bk,color;
  d.style.marginLeft="-"+getPadding(el,"Left")+"px";
  d.style.marginRight="-"+getPadding(el,"Right")+"px";
  if(options.find("alias") || (color=getBk(el))=="transparent"){
      color="transparent";bk="transparent"; border=getParentBk(el);btype="t";
      }
  else{
      bk=getParentBk(el); border=Mix(color,bk);
      }
  d.style.background=bk;
  d.className="niftycorners";
  p=getPadding(el,"Top");
  if(options.find("small")){
      d.style.marginBottom=(p-2)+"px";
      btype+="s"; lim=2;
      }
  else if(options.find("big")){
      d.style.marginBottom=(p-10)+"px";
      btype+="b"; lim=8;
      }
  else d.style.marginBottom=(p-5)+"px";
  for(i=1;i<=lim;i++)
      d.appendChild(CreateStrip(i,side,color,border,btype));
  el.style.paddingTop="0";
  el.insertBefore(d,el.firstChild);
  }
  
  function AddBottom(el,side,options){
  var d=CreateEl("b"),lim=4,border="",p,i,btype="r",bk,color;
  d.style.marginLeft="-"+getPadding(el,"Left")+"px";
  d.style.marginRight="-"+getPadding(el,"Right")+"px";
  if(options.find("alias") || (color=getBk(el))=="transparent"){
      color="transparent";bk="transparent"; border=getParentBk(el);btype="t";
      }
  else{
      bk=getParentBk(el); border=Mix(color,bk);
      }
  d.style.background=bk;
  d.className="niftycorners";
  p=getPadding(el,"Bottom");
  if(options.find("small")){
      d.style.marginTop=(p-2)+"px";
      btype+="s"; lim=2;
      }
  else if(options.find("big")){
      d.style.marginTop=(p-10)+"px";
      btype+="b"; lim=8;
      }
  else d.style.marginTop=(p-5)+"px";
  for(i=lim;i>0;i--)
      d.appendChild(CreateStrip(i,side,color,border,btype));
  el.style.paddingBottom=0;
  el.appendChild(d);
  }
  
  function CreateStrip(index,side,color,border,btype){
  var x=CreateEl("b");
  x.className=btype+index;
  x.style.backgroundColor=color;
  x.style.borderColor=border;
  if(side=="left"){
      x.style.borderRightWidth="0";
      x.style.marginRight="0";
      }
  else if(side=="right"){
      x.style.borderLeftWidth="0";
      x.style.marginLeft="0";
      }
  return(x);
  }
  
  function CreateEl(x){
  return(document.createElement(x));
  }
  
  function FixIE(el){
  if(el.currentStyle!=null && el.currentStyle.hasLayout!=null && el.currentStyle.hasLayout==false)
      el.style.display="inline-block";
  }
  
  function SameHeight(selector,maxh){
  var i,v=selector.split(","),t,j,els=[],gap;
  for(i=0;i<v.length;i++){
      t=getElementsBySelector(v[i]);
      els=els.concat(t);
      }
  for(i=0;i<els.length;i++){
      if(els[i].offsetHeight>maxh) maxh=els[i].offsetHeight;
      els[i].style.height="auto";
      }
  for(i=0;i<els.length;i++){
      gap=maxh-els[i].offsetHeight;
      if(gap>0){
          t=CreateEl("b");t.className="niftyfill";t.style.height=gap+"px";
          nc=els[i].lastChild;
          if(nc.className=="niftycorners")
              els[i].insertBefore(t,nc);
          else els[i].appendChild(t);
          }
      }
  }
  
  function getElementsBySelector(selector){
  var i,j,selid="",selclass="",tag=selector,tag2="",v2,k,f,a,s=[],objlist=[],c;
  if(selector.find("#")){ //id selector like "tag#id"
      if(selector.find(" ")){  //descendant selector like "tag#id tag"
          s=selector.split(" ");
          var fs=s[0].split("#");
          if(fs.length==1) return(objlist);
          f=document.getElementById(fs[1]);
          if(f){
              v=f.getElementsByTagName(s[1]);
              for(i=0;i<v.length;i++) objlist.push(v[i]);
              }
          return(objlist);
          }
      else{
          s=selector.split("#");
          tag=s[0];
          selid=s[1];
          if(selid!=""){
              f=document.getElementById(selid);
              if(f) objlist.push(f);
              return(objlist);
              }
          }
      }
  if(selector.find(".")){      //class selector like "tag.class"
      s=selector.split(".");
      tag=s[0];
      selclass=s[1];
      if(selclass.find(" ")){   //descendant selector like tag1.classname tag2
          s=selclass.split(" ");
          selclass=s[0];
          tag2=s[1];
          }
      }
  var v=document.getElementsByTagName(tag);  // tag selector like "tag"
  if(selclass==""){
      for(i=0;i<v.length;i++) objlist.push(v[i]);
      return(objlist);
      }
  for(i=0;i<v.length;i++){
      c=v[i].className.split(" ");
      for(j=0;j<c.length;j++){
          if(c[j]==selclass){
              if(tag2=="") objlist.push(v[i]);
              else{
                  v2=v[i].getElementsByTagName(tag2);
                  for(k=0;k<v2.length;k++) objlist.push(v2[k]);
                  }
              }
          }
      }
  return(objlist);
  }
  
  function getParentBk(x){
  var el=x.parentNode,c;
  while(el.tagName.toUpperCase()!="HTML" && (c=getBk(el))=="transparent")
      el=el.parentNode;
  if(c=="transparent") c="#FFFFFF";
  return(c);
  }
  
  function getBk(x){
  var c=getStyleProp(x,"backgroundColor");
  if(c==null || c=="transparent" || c.find("rgba(0, 0, 0, 0)"))
      return("transparent");
  if(c.find("rgb")) c=rgb2hex(c);
  return(c);
  }
  
  function getPadding(x,side){
  var p=getStyleProp(x,"padding"+side);
  if(p==null || !p.find("px")) return(0);
  return(parseInt(p));
  }
  
  function getStyleProp(x,prop){
  if(x.currentStyle)
      return(x.currentStyle[prop]);
  if(document.defaultView.getComputedStyle)
      return(document.defaultView.getComputedStyle(x,'')[prop]);
  return(null);
  }
  
  function rgb2hex(value){
  var hex="",v,h,i;
  var regexp=/([0-9]+)[, ]+([0-9]+)[, ]+([0-9]+)/;
  var h=regexp.exec(value);
  for(i=1;i<4;i++){
      v=parseInt(h[i]).toString(16);
      if(v.length==1) hex+="0"+v;
      else hex+=v;
      }
  return("#"+hex);
  }
  
  function Mix(c1,c2){
  var i,step1,step2,x,y,r=new Array(3);
  if(c1.length==4)step1=1;
  else step1=2;
  if(c2.length==4) step2=1;
  else step2=2;
  for(i=0;i<3;i++){
      x=parseInt(c1.substr(1+step1*i,step1),16);
      if(step1==1) x=16*x+x;
      y=parseInt(c2.substr(1+step2*i,step2),16);
      if(step2==1) y=16*y+y;
      r[i]=Math.floor((x*50+y*50)/100);
      r[i]=r[i].toString(16);
      if(r[i].length==1) r[i]="0"+r[i];
      }
  return("#"+r[0]+r[1]+r[2]);
  }