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;
}

function P7_autoLayers() { //v1.4 by PVII
 var g,b,k,f,args=P7_autoLayers.arguments;
 a=parseInt(args[0]);if(isNaN(a))a=0;
 if(!document.p7setc){p7c=new Array();document.p7setc=true;for(var u=0;u<10;u++){
 p7c[u]=new Array();}}for(k=0;k<p7c[a].length;k++){if((g=MM_findObj(p7c[a][k]))!=null){
 b=(document.layers)?g:g.style;b.visibility="hidden";}}for(k=1;k<args.length;k++){
 if((g=MM_findObj(args[k]))!=null){b=(document.layers)?g:g.style;b.visibility="visible";f=false;
 for(var j=0;j<p7c[a].length;j++){if(args[k]==p7c[a][j]) {f=true;}}
 if(!f){p7c[a][p7c[a].length++]=args[k];}}}
}

function ClearSearchBox()
{
	document.getElementById('words').value = "";
}

function ShowHide(obj)
{
el=document.getElementById(obj);
el.style.display=(el.style.display!="block")?"block":"none";
}

function HideShow(obj)
{
el=document.getElementById(obj);
el.style.display=(el.style.display!="none")?"none":"block";
}

function HideMenu(obj)
{
	if(obj.length > 0)
	{
		if(obj.length>8)
		{
			var img = "Plus" + obj.charAt(obj.length-2);
		}
		else
		{
			var img = "Plus" + obj.charAt(obj.length-1);
		}
	}
	
	if(document.getElementById)
	{
		var sidebarList = document.getElementById('LeftTreeMenu');
		var sidebarDivs = sidebarList.getElementsByTagName('ul');
		for(var i=0; i<sidebarDivs.length; i++)
		{
			if(sidebarDivs[i].id != obj) 
			{
				sidebarDivs[i].style.display = 'none';
				if(obj.length > 0)
				{
					document.getElementById(img).src = "http://www.rothamsted.bbsrc.ac.uk/broom/includes/images/Minus.gif";
				}
			}
		}
	}
}

function ShowMenu(obj,obj1)
{
	// current object
	el=document.getElementById(obj);
	img = document.getElementById(obj1);
	var img = "Plus" + obj.charAt(obj.length-1);

	if(document.getElementById)
	{
		var sidebarList = document.getElementById('LeftTreeMenu');
		var sidebarDivs = sidebarList.getElementsByTagName('ul');
		var sidebarImgs = sidebarList.getElementsByTagName('img');
		for(var i=0; i<sidebarDivs.length; i++)
		{
			if(sidebarDivs[i].id != obj) 
			{
				sidebarDivs[i].style.display = 'none';
			}
			else
			{
				el.style.display=(el.style.display!="none")?"none":"block";
			}
			if(sidebarImgs[i].id != img)
			{
				sidebarImgs[i].src = "http://www.rothamsted.bbsrc.ac.uk/broom/includes/images/Plus.gif";
			}
		}
		if(document.getElementById(img).src != "http://www.rothamsted.bbsrc.ac.uk/broom/includes/images/Minus.gif")
		{
			document.getElementById(img).src = "http://www.rothamsted.bbsrc.ac.uk/broom/includes/images/Minus.gif";
		}
		else
		{
			document.getElementById(img).src = "http://www.rothamsted.bbsrc.ac.uk/broom/includes/images/Plus.gif";
		}

	}
	return false;
}