/****************************************************************************   
DHTML library from DHTMLCentral.com
*   Copyright (C) 2001 Thomas Brattli 2001
*   This script was released at DHTMLCentral.com
*   Visit for more great scripts!
*   This may be used and changed freely as long as this msg is intact!
*   We will also appreciate any links you could give us.
*
*   Made by Thomas Brattli 2001
***************************************************************************/
//Browsercheck (needed) ***************
function lib_bwcheck(){ 
  this.ver=navigator.appVersion
  this.agent=navigator.userAgent
  this.dom=document.getElementById?1:0
  this.opera5=this.agent.indexOf("Opera 5")>-1
  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
}
bw=new lib_bwcheck() //Browsercheck object

//Debug function ******************
function lib_message(txt){alert(txt); return false}

//Lib objects  ********************
function lib_obj(obj,nest){ 
  if(!bw.bw) return lib_message('Old browser')
  nest=(!nest) ? "":'document.'+nest+'.'
  this.evnt=bw.dom? document.getElementById(obj):
    bw.ie4?document.all[obj]:bw.ns4?eval(nest+"document.layers." +obj):0;	
  if(!this.evnt) return lib_message('The layer does not exist ('+obj+')' 
    +'- \nIf your using Netscape please check the nesting of your tags!')
  this.css=bw.dom||bw.ie4?this.evnt.style:this.evnt; 
  this.ref=bw.dom||bw.ie4?document:this.css.document;
  this.x=parseInt(this.css.left)||this.css.pixelLeft||this.evnt.offsetLeft||0;
  this.y=parseInt(this.css.top)||this.css.pixelTop||this.evnt.offsetTop||0
  this.w=this.evnt.offsetWidth||this.css.clip.width||
    this.ref.width||this.css.pixelWidth||0; 
  this.h=this.evnt.offsetHeight||this.css.clip.height||
    this.ref.height||this.css.pixelHeight||0
  this.c=0 //Clip values
  if((bw.dom || bw.ie4) && this.css.clip) {
  this.c=this.css.clip; this.c=this.c.slice(5,this.c.length-1); 
  this.c=this.c.split(' ');
  for(var i=0;i<4;i++){this.c[i]=parseInt(this.c[i])}
  }
  this.ct=this.css.clip.top||this.c[0]||0; 
  this.cr=this.css.clip.right||this.c[1]||this.w||0
  this.cb=this.css.clip.bottom||this.c[2]||this.h||0; 
  this.cl=this.css.clip.left||this.c[3]||0
  this.obj = obj + "Object"; eval(this.obj + "=this")
  return this
}

//Showing object ************
lib_obj.prototype.showIt = function(){this.css.visibility="visible"}

//Hiding object **********
lib_obj.prototype.hideIt = function(){this.css.visibility="hidden"}