function lib_bwcheck(){ //Browsercheck (needed)
    	this.ver=navigator.appVersion
    	this.agent=navigator.userAgent
    	this.dom=document.getElementById?1:0
    	this.opera5=(navigator.userAgent.indexOf("Opera")>-1 && document.getElementById)?1:0
    	this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom && !this.opera5)?1:0; 
    	this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom && !this.opera5)?1:0;
    	this.ie4=(document.all && !this.dom && !this.opera5)?1:0;
    	this.ie=this.ie4||this.ie5||this.ie6
    	this.mac=this.agent.indexOf("Mac")>-1
    	this.ns6=(this.dom && parseInt(this.ver) >= 5) ?1:0; 
    	this.ns4=(document.layers && !this.dom)?1:0;
    	this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5)
    	return this
    }
    var bw=new lib_bwcheck()
    
    
        //Makes crossbrowser object.
    function makeObj(obj){								
       	this.evnt=bw.dom? document.getElementById(obj):bw.ie4?document.all[obj]:bw.ns4?document.layers[obj]:0;
    	if(!this.evnt) return false
    	this.css=bw.dom||bw.ie4?this.evnt.style:bw.ns4?this.evnt:0;	
       	this.wref=bw.dom||bw.ie4?this.evnt:bw.ns4?this.css.document:0;		
    	this.writeIt=b_writeIt;																
    	return this
    }

//pre-loader
if(document.images) {
  imgLoad     = new Array();
  myImageList = ['profile', 'current', 'past', 'forsale', 'artclasses'];
  myRoot      = '/images/nav/';
  for (var i=0;i<myImageList.length;i++) {
    eval("imgLoad['"+myImageList[i]+"On'] = new Image()");
    eval("imgLoad['"+myImageList[i]+"On'].src = '"+myRoot+myImageList[i]+"_on.gif'"); 
    eval("imgLoad['"+myImageList[i]+"Off'] = new Image(); ");
    eval("imgLoad['"+myImageList[i]+"Off'].src = '"+myRoot+myImageList[i]+".gif'"); 
  }
}

function swapImg( imgId, state ) {
  var theImage = FWFindImage(document, imgId, 0);
  if (theImage) {
    theImage.src = imgLoad[imgId+state].src
  }
}
    
function FWFindImage(doc, name, j) {
  var theImage    = false;
  if (doc.images) theImage = doc.images[name];
  if (theImage)   return theImage;
  if (doc.layers) {
    for (j = 0; j < doc.layers.length; j++) {
      theImage = FWFindImage(doc.layers[j].document, name, 0);
      if (theImage) return (theImage);
    }
  } return (false);
}

function confirmAction(url) {
    if ( confirm("Are you sure?") ) {
        location.href = url;
    }
}