/**
 * @author Jan Molak
 */                   
function cleanUpXML(n) {
  var i=0;

  if (!n.hasChildNodes()) return;
  while(n.childNodes[i]) {
    cleanUpXML(n.childNodes[i]);
    if (n.childNodes[i].nodeType==3 &&
        n.childNodes[i].nodeValue.replace(/(\r|\n|\t|^ *| *$)/g,'')=='') {
      n.removeChild(n.childNodes[i]);
      i--;
    }
    i++;
  }
}

function isObject(a) {
  return (typeof a == 'object' && !!a) || isFunction(a);
}

function isFunction(a) {
    return typeof a == 'function';
}
 
/*
    Function written by Jonathan Snook, http://www.snook.ca/jonathan
    Add-ons by Robert Nyman, http://www.robertnyman.com
*/

/*
 *	To get all a elements in the document with a ?info-links? class.
 *  getElementsByClassName(document, "a", "info-links");
 * 	To get all div elements within the element named ?container?, with a ?col? and a ?left? class.
 *  getElementsByClassName(document.getElementById("container"), "div", ["col", "left"]);
 */

var IH = null;        
function ImageHandler() {

    this.preloadImages = function() {
        
        var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
        var i,j=d.MM_p.length,a=this.preloadImages.arguments; for(i=0; i<a.length; i++)
        if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}    
    }
    
    this.swapImgRestore = function() {
        
        var i,x,a=document.MM_sr; 
        for(i=0;a&&i<a.length&&(x=a[i])&&(x.oSrc||x.style.filter);i++) { 
            if(x.style.filter && x.runtimeStyle.filter) { x.runtimeStyle.filter="progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+x.oSrc+"', sizingMethod=crop)"; } 
            else { x.src=x.oSrc; }
        }     
    }
    
    this.findObj = function(n, d) {
        
        var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
            d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
        if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
        for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=this.findObj(n,d.layers[i].document);
        if(!x && d.getElementById) x=d.getElementById(n); return x;  
    }
    
    this.swapImage = function() {
        
        var i,j=0,x,a=this.swapImage.arguments; 
        document.MM_sr=new Array; 
        for(i=0;i<(a.length-2);i+=3)
            if ((x=this.findObj(a[i]))!=null) {
                document.MM_sr[j++]=x;                           
                if(x.style.filter && x.runtimeStyle.filter && !x.oSrc) {
                    v = 'src';
                    from = x.runtimeStyle.filter.indexOf('=', x.runtimeStyle.filter.indexOf(v)+v.length)+2;
                    src = x.runtimeStyle.filter.substring( from , x.runtimeStyle.filter.indexOf("'", from)>1?x.runtimeStyle.filter.indexOf("'", from):x.runtimeStyle.filter.length );                         
                    x.oSrc=src;
                }                   
                else if(!x.oSrc) { x.oSrc=x.src; } 
                
                if(x.style.filter && x.runtimeStyle.filter) { x.runtimeStyle.filter="progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+a[i+2]+"', sizingMethod=crop)"; } 
                else { x.src=a[i+2]; }
            }
    }
}