var NS = (document.layers) ? 1 : 0;
var IE = (document.all && document.getElementById) ? 1 : 0;
var N6 = (!document.all && document.getElementById) ? 1 : 0;

function MM_findObj(n, d) { //v3.0
  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=MM_findObj(n,d.layers[i].document); return x;
}
/* Functions that swaps images. */
function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

/* Functions that handle preload. */
function MM_preloadImages() { //v3.0
 var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
   var i,j=d.MM_p.length,a=MM_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];}}
}

function loadImages(){
   MM_preloadImages(
'/images/menu_contact_roll_off.gif','/images/menu_contact_roll_on.gif',
'/images/menu_highlights_roll_off.gif','/images/menu_highlights_roll_on.gif',
'/images/menu_tv_roll_off.gif','/images/menu_tv_roll_on.gif',
'/images/menu_event_roll_off.gif','/images/menu_event_roll_on.gif',
'/images/menu_dance_roll_off.gif','/images/menu_dance_roll_on.gif',
'/images/menu_snapshots_roll_off.gif','/images/menu_snapshot_roll_on.gif',
'/images/menu_logbook_roll_off.gif','/images/menu_logbook_roll_on.gif',
'/images/menu_who_roll_off.gif','/images/menu_who_roll_on.gif');
}


function GetStyle(name) {
   if (document.getElementById)
      return document.getElementById(name).style;
   else if (document.all)
      return document.all[name].style;
   else {
      var el = document.layers[name];
      if (el != null)   return el;
      for (var i=0; i<document.layers.length; i++) {
         el = document.layers[i].document.layers[name];
         if (el != null)   return el;
      }//end-for-i
   }//end-if  
}//end-func-GetStyle

function styleRoll(span, vis) {
   var el = GetStyle(span);
   var state = vis? 'visible':'hidden';
   el.visibility = state;
}//end-func-styleRoll

function imageSwap3On(theImage, theSrc, span) {
   imageSwap2(theImage, theSrc);
   styleRoll(span, true);
}//end-func-imageSwap3On

function imageSwap3Off(theImage, theSrc, span) {
   imageSwap2(theImage, theSrc);
   styleRoll(span, false);
}//end-func-imageSwap3Off

function imageSwap2(theImage, theSrc) {
   if (document.images) {
      var img = document.images[theImage];
      if (img)   img.src = theSrc;
      else {
         for (var i=0; i<document.images.length; i++) {
            if (document.images[i].name == theSrc) {
               document.images[i].src = theSrc;
               return;
            }//end-if
         }//end-for-i
      }//end-if-img
   }//end-if-document.images
}//end-func-imageSwap2

var winImage;
function showImage(file,width,height,bgcolor,center,popup){
		if(bgcolor=='') bgcolor='FFFFFF';
                content = "<HTML>\n";
                content += "<BODY TOPMARGIN=0 LEFTMARGIN=0 BGCOLOR=#"+bgcolor+">\n";
		if(center=='Y') content += "<CENTER>\n";
                content += "<IMG SRC='"+file+"' BORDER=0>";
		if(center=='Y') content += "</CENTER>\n";
                content += "</BODY>\n";
                content += "</HTML>\n";
		if(popup=='Y'){
                	winWidth = width+20;
                	winHeight = height;
                	args='top=50,left=200,screenX=0,screenY=0,width='+winWidth+',height='+winHeight+',scrollbars=yes,resizable=yes';
		}else{
                	if ((navigator.appName=="Netscape") && (parseInt(navigator.appVersion)<=4)) {
                        	winWidth = screen.availWidth;
                        	winHeight = screen.availHeight
			}else{
                		winWidth = screen.Width;
                		winHeight = screen.Height;
			}
                	args='top=0,left=0,screenX=0,screenY=0,width='+winWidth+',height='+winHeight+',toolbar=yes,location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,resizable=yes';
		}
                if(winImage) winImage.close();
                winImage=window.open("","Win",args);
                winImage.document.write(content);
                winImage.opener=self;
                winImage.focus();
}

function View(winname,theURL,top,left,width,height) 
{
	msgWindow = window.open(theURL,winname,'menubar=no,scrollbars=yes,toolbar=no,location=no,titlebar=no,resizable=no,status=no,screenX=0,top='+top+',screenY=0,left='+left+',width='+width+',height='+height+'');

	if (msgWindow.opener == null) 
		msgWindow.opener = self;

}

function HodfordsExchange(smallNo){
	var tmpSmallSource = document.images[smallNo].src;	
	tmpSmallSource = tmpSmallSource.replace("s_thumbnail","m_thumbnail");
	
	var tmpLargeSource = document.images.largeImg.src;
	tmpLargeSource = tmpLargeSource.replace("m_thumbnail","s_thumbnail");
	
	document.images.largeImg.src = tmpSmallSource;
	document.images[smallNo].src = tmpLargeSource;
}
