/* This script and many more are available free online at
  The JavaScript Source!! http://javascript.internet.com
  Created by: Steffen Rusitschka | http://www.ruzee.com/ */
  var RUZEE = window.RUZEE || {};
  
  RUZEE.ShadedBorder = {
  
  create: function(opts) {
    var isie = /msie/i.test(navigator.userAgent) && !window.opera;
    function sty(el, h) {
      for(k in h) {
        if (/ie_/.test(k)) {
          if (isie) el.style[k.substr(3)]=h[k];
        } else el.style[k]=h[k];
      }
    }
    function crdiv(h) {
      var el=document.createElement("div");
      el.className = "sb-gen";
      sty(el, h);
      return el;
    }
    function op(v) {
      v = v<0 ? 0 : v;
      v = v>0.99999 ? 0.99999 : v;
      if (isie) {
        return " filter:alpha(opacity=" + (v*100) + ");";
      } else {
        return " opacity:" + v + ';';
      }
    }
  
    var sr = opts.shadow || 0;
    var r = opts.corner || 0;
    var bor = 0;
    var bow = opts.border || 0;
    var shadow = sr != 0;
    var lw = r > sr ? r : sr;
    var rw = lw;
    var th = lw;
    var bh = lw;
    if (bow > 0) {
      bor = r;
      r = r - bow;
    }
    var cx = r != 0 && shadow ? Math.round(lw/3) : 0;
    var cy = cx;
    var cs = Math.round(cx/2);
    var iclass = r > 0 ? "sb-inner" : "sb-shadow";
    var sclass = "sb-shadow";
    var bclass = "sb-border";
    var edges = opts.edges || "trlb";
    if (!/t/i.test(edges)) th=0;
    if (!/b/i.test(edges)) bh=0;
    if (!/l/i.test(edges)) lw=0;
    if (!/r/i.test(edges)) rw=0;
  
    var p = { position:"absolute", left:"0", top:"0", width:lw + "px", height:th + "px", 
              ie_fontSize:"1px", overflow:"hidden" }; var tl = crdiv(p);
    delete p.left; p.right="0"; p.width=rw + "px"; var tr = crdiv(p);
    delete p.top; p.bottom="0"; p.height=bh + "px"; var br = crdiv(p);
    delete p.right; p.left="0"; p.width=lw + "px"; var bl = crdiv(p);
  
    var tw = crdiv({ position:"absolute", width:"100%", height:th + "px", ie_fontSize:"1px",
                     top:"0", left:"0", overflow:"hidden" });
    var t = crdiv({ position:"relative", height:th + "px", ie_fontSize:"1px", marginLeft:lw + "px",
                    marginRight:rw + "px", overflow:"hidden" });
    tw.appendChild(t);
  
    var bw = crdiv({ position:"absolute", left:"0", bottom:"0", width:"100%", height:bh + "px", 
                     ie_fontSize:"1px", overflow:"hidden" });
                     
    var b = crdiv({ position:"relative", height:bh + "px", ie_fontSize:"1px", marginLeft:lw + "px",
                    marginRight:rw + "px", overflow:"hidden" });
                    
    bw.appendChild(b);
  
    var mw = crdiv({ position:"absolute", top:(-bh)+"px", left:"0", width:"100%", height:"100%",
                     overflow:"hidden", ie_fontSize:"1px" });
  
    function corner(el,t,l) {
      var w = l ? lw : rw;
      var h = t ? th : bh;
      var s = t ? cs : -cs;
      var dsb = []; var dsi = []; var dss = [];
      
      var xp=0; var xd=1; if (l) { xp=w-1; xd=-1; }
      for (var x=0; x<w; ++x) {
        var yp=0; var yd=1; if (t) { yp=h-1; yd=-1; }
        for (var y=0; y<h; ++y) {
          var div = '<div style="position:absolute; top:' + yp + 'px; left:' + xp + 'px; ' +
                    'width:1px; height:1px; overflow:hidden;';
  
          var xc = x - cx; var yc = y - cy - s;
          var d = Math.sqrt(xc*xc+yc*yc);
          var doShadow = false;
  
          if (r > 0) {
            // draw border
            if (xc < 0 && yc < bor && yc >= r || yc < 0 && xc < bor && xc >= r) {
              dsb.push(div + '" class="' + bclass + '"></div>');
            } else
            if (d<bor && d>=r-1 && xc>=0 && yc>=0) {
              var dd = div;
              if (d>=bor-1) {
                dd += op(bor-d);
                doShadow = true;
              }
              dsb.push(dd + '" class="' + bclass + '"></div>');
            }
            
            // draw inner
            var dd = div + ' z-index:2;';
            if (xc < 0 && yc < r || yc < 0 && xc < r) {
              dsi.push(dd + '" class="' + iclass + '"></div>');
            } else
            if (d<r && xc>=0 && yc>=0) {
              if (d>=r-1) {
                dd += op(r-d);
                doShadow = true;
              }
              dsi.push(dd + '" class="' + iclass + '"></div>');
            } else doShadow = true;
          } else doShadow = true;
          
          // draw shadow
          if (sr > 0 && doShadow) {
            d = Math.sqrt(x*x+y*y);
            if (d<sr) {
              dss.push(div + ' z-index:0; ' + op(1-(d/sr)) + '" class="' + sclass + '"></div>');
            }
          }
          yp += yd;
        }
        xp += xd;
      }
      el.innerHTML = dss.concat(dsb.concat(dsi)).join('');
    }
    
    function mid(mw) {
      var ds = [];
  
      ds.push('<div style="position:relative; top:' + (th+bh) + 'px;' +
              ' height:10000px; margin-left:' + (lw-r-cx) + 'px;' +
              ' margin-right:' + (rw-r-cx) + 'px; overflow:hidden;"' +
              ' class="' + iclass + '"></div>');
  
      var dd = '<div style="position:absolute; width:1px;' +
          ' top:' + (th+bh) + 'px; height:10000px;';
      for (var x=0; x<lw-r-cx; ++x) {
        ds.push(dd + ' left:' + x + 'px;' + op((x+1.0)/lw) + 
            '" class="' + sclass + '"></div>');
      }
  
      for (var x=0; x<rw-r-cx; ++x) {
        ds.push(dd + ' right:' + x + 'px;' + op((x+1.0)/rw) + 
            '" class="' + sclass + '"></div>');
      }
  
      if (bow > 0) {
        var su = ' width:' + bow + 'px;' + '" class="' + bclass + '"></div>';
        ds.push(dd + ' left:' + (lw-bor-cx) + 'px;' + su);
        ds.push(dd + ' right:' + (rw-bor-cx) + 'px;' + su);
      }
  
      mw.innerHTML = ds.join('');
    }
  
    function tb(el, t) {
      var ds = [];
      var h = t ? th : bh;
      var dd = '<div style="height:1px; overflow:hidden; position:absolute;' +
          ' width:100%; left:0px; ';
      var s = t ? cs : -cs;
      for (var y=0; y<h-s-cy-r; ++y) {
        ds.push(dd + (t ? 'top:' : 'bottom:') + y + 'px;' + op((y+1)*1.0/h) + 
            '" class="' + sclass + '"></div>');
      }
      if (y >= bow) {
        ds.push(dd + (t ? 'top:' : 'bottom:') + (y - bow) + 'px;' +
            ' height:' + bow + 'px;" class="' + bclass + '"></div>');
      }
  
      ds.push(dd + (t ? 'top:' : 'bottom:') + y + 'px;' +
          ' height:' + (r+cy+s) + 'px;" class="' + iclass + '"></div>');
  
      el.innerHTML = ds.join('');
    }
  
    corner(tl, true, true); corner(tr, true, false);
    corner(bl, false, true); corner(br, false, false);
    mid(mw); tb(t, true); tb(b, false);
  
    return {
      render: function(el) {
        if (typeof el == 'string') el = document.getElementById(el);
        if (el.length != undefined) {
          for (var i=0; i<el.length; ++i) this.render(el[i]);
          return;
        }
        // remove generated children
        var node = el.firstChild;
        while (node) {
          var nextNode = node.nextSibling;
          if (node.nodeType == 1 && node.className == 'sb-gen')
            el.removeChild(node);
          node = nextNode;
        }
  
        var iel = el.firstChild;
  
        var twc = tw.cloneNode(true);
        var mwc = mw.cloneNode(true);
        var bwc = bw.cloneNode(true);
        
        el.insertBefore(tl.cloneNode(true), iel); el.insertBefore(tr.cloneNode(true), iel);
        el.insertBefore(bl.cloneNode(true), iel); el.insertBefore(br.cloneNode(true), iel);
        el.insertBefore(twc, iel); el.insertBefore(mwc, iel);
        el.insertBefore(bwc, iel);
  
        if (isie) {
          function resize() {
            twc.style.width = bwc.style.width = mwc.style.width = el.offsetWidth + "px";
            mwc.firstChild.style.height = el.offsetHeight + "px";
          }
          el.onresize=resize;
          resize();
        }
      }
    };
  }
  }
  
  // add our styles to the document
  document.write(
    '<style type="text/css">' +
    '.sb, .sbi, .sb *, .sbi * { position:relative; z-index:1; }' +
    '* html .sb, * html .sb *, * html .sbi, * html .sbi * { height:1%; }' +
    '.sbi { display:inline-block; }' +
    '.sb-inner { background:#ddd; }' +
    '.sb-shadow { background:#000; }' +
    '.sb-border { background:#bbb; }' +
    '</style>'
  );
  
  // Multiple onload function created by: Simon Willison
  // http://simonwillison.net/2004/May/26/addLoadEvent/
  function addLoadEvent(func) {
    var oldonload = window.onload;
    if (typeof window.onload != 'function') {
      window.onload = func;
    } else {
      window.onload = function() {
        if (oldonload) {
          oldonload();
        }
        func();
      }
    }
  }
  
  addLoadEvent(function() {
    border.render('shadowed-border');
    border.render('shadowed-border2');
  });