function pageNav(target,sTag){
 
 	var tagAr = sTag.split('_');
	var s = parseInt(tagAr[1]);
	
	var idName = tagAr[0];

	if(target == 'next'){
		var	goId = s + 1;
	}else{
		var	goId = s - 1;
	}
	if(goId == 0){
		go2File = "index.html";	
	}else{
		var go2File = document.getElementById(idName + '_' + goId).href;
	}
	window.location= go2File;
 }

function MM_showHideLayers() { //v9.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) 
  with (document) if (getElementById && ((obj=getElementById(args[i]))!=null)) { v=args[i+2];
	if (obj.style) { obj=obj.style; v=(v=='block')?'block':(v=='none')?'none':v; }
	obj.display=v; }
}