function MM_findObj(n, d) { //v4.01
  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);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

//swap layers factory
var cur_lyrfactory = -1;	// holds id of currently visible layer
function swapLayersFactory(id) {
	MM_findObj('factory0').innerHTML = MM_findObj(id).innerHTML;
	MM_findObj('lbl'+id).className='selected';
	if (cur_lyrfactory != -1) MM_findObj(cur_lyrfactory).className='hide';
  cur_lyrfactory = id;
}


//swap layers steel
var cur_lyrsteel = -1;	// holds id of currently visible layer
function swapLayersSteel(id) {
	MM_findObj('steel0').innerHTML = MM_findObj(id).innerHTML;
	MM_findObj(id).className='selected';
	if (cur_lyrsteel != -1) MM_findObj(cur_lyrsteel).className='hide';
  cur_lyrsteel = id;
}

//swap layers forging
var cur_lyrforging = -1;	// holds id of currently visible layer
function swapLayersForging(id) {
	MM_findObj('forging0').innerHTML = MM_findObj(id).innerHTML;
	MM_findObj(id).className='selected';
	if (cur_lyrforging != -1) MM_findObj(cur_lyrforging).className='hide';
  cur_lyrforging = id;
}

//swap layers seealso
function swapLayersSeealso(id) {
	MM_findObj('lyrSa0').innerHTML = MM_findObj(id).innerHTML;
}