var DomYes=document.getElementById?1:0;
var bname = navigator.appName;
var bversion = parseFloat(navigator.appVersion); 
var roll;

if (bname == "Netscape" && bversion >= 3.0) { roll = 'true'; }
else if (bname == "Microsoft Internet Explorer" && bversion >= 3.0) 
  { roll = 'true'; }
else { roll = 'false'; }


function change1(iname,img,status) { 
  if (roll == 'true') 
    { document.images[iname].src = 'images/'+img; window.status=status; } 
}

function change2(iname1,img1,iname2,img2,status) { 
  if (roll == 'true') { 
    document.images[iname1].src = 'images/'+img1;
    document.images[iname2].src = 'images/'+img2;
    window.status=status;
  }
}

function change3(iname1,img1,iname2,img2,iname3,img3,status) { 
  if (roll == 'true') { 
    document.images[iname1].src = 'images/'+img1;
    document.images[iname2].src = 'images/'+img2;
    document.images[iname3].src = 'images/'+img3;
    window.status=status; 
  } 
}

function navChg(ele,s) {
  change2('arrow',ele+'_arrow.jpg','navImg',ele+'.jpg',s);
}

function indxOvr(ele,s) {
  change3('arrow',ele+'_arrow.jpg','vertLine','vertline_arrow.jpg','navImg',ele+'.jpg',s);
}

function indxOut() {
  change3('arrow','spacer.gif','vertLine','spacer.gif','navImg','home.jpg','');
}



var win=new Array();
win['MYSELF'] = window;

function NewWindow(mypage,myname,w,h,scroll,pos){

  if (pos!="center" && pos!="random" && pos!=null) {   
    settings=',scrollbars='+scroll+','+pos;
    pos="center";
  }
  else if (w != 0 || h != 0) { 
    settings=',scrollbars='+scroll+
      ',location=no,directories=no,status=yes,menubar=no,'+
	'toolbar=no,resizable=yes';
  }
  else {
    w=800;
    h=600;
    settings=',scrollbars='+scroll+
      ',location=yes,directories=yes,status=yes,menubar=yes,'+
	'toolbar=yes,resizable=yes';
  }
  if(pos=="random") {
    LeftPosition=(screen.width)?
      Math.floor(Math.random()*(screen.width-w)):100;
    TopPosition=(screen.height)
      ?Math.floor(Math.random()*((screen.height-h)-75)):100;
  }
  else if(pos=="center") {
    LeftPosition=(screen.width)?(screen.width-w)/2:100;
    TopPosition=(screen.height)?(screen.height-h)/2:100;
  }
  else if((pos!="center" && pos!="random") || pos==null) {
    LeftPosition=0;
    TopPosition=20;
  }
  settings='width='+w+',height='+h+',top='+TopPosition+',left='+
    LeftPosition+settings;
    
  win[myname]=window.open(mypage,myname,settings);
  win[myname].focus();
}

function change_page(url) {
  var sameWind = window.location.href=url;
}



function get_dom (name) {
  return (document.layers?
	  document.layers[name]:
	  DomYes?document.getElementById(name):
	  document.all[name]);
}

function chgCls (name,cname) {
  chg_class (name,cname);
}

function chg_class (name,cname) {
  
  if (!document.layers) {
    var obj = get_dom(name);
    obj.className = cname;
  } 

  
}