// JavaScript Document



function toggleLayer(whichLayer)
{
	if (document.getElementById){
		// this is the way the standards work
		var obj = document.getElementById(whichLayer).style;
		obj.display = obj.display? "":"block";
	}else if (document.all){
		// this is the way old msie versions work
		var obj = document.all[whichLayer].style;
		obj.display = obj.display? "":"block";
	}else if (document.layers){
		// this is the way nn4 works
		var obj = document.layers[whichLayer].style;
		obj.display = obj.display? "":"block";
	}
}

function toggleAll(el,state){
	var obj;
	var target;
	// determines where to start expanding and collapsing groups, based upon el control number
	// eg exp_control1 expands collapses exp_content1 ... exp_content10
	// 		exp_control2 expands collapses exp_content11 ... exp_content20
	// 		exp_control3 expands collapses exp_content21 ... exp_content30
	var group = (Number(el.toString().substring(11))-1)*10;

	for(var i=(group+1); i<= group + 10; i++){
		var layer = 'exp_content' + i;
		if (document.getElementById){
			// this is the way the standards work
			obj = document.getElementById(layer);
			target = document.getElementById(el);
		}else if (document.all){
			// this is the way old msie versions work
			obj = document.all[layer];
			target = document.all[el];
		}else if (document.layers){
			// this is the way nn4 works
			obj = document.layers[layer];
			target = document.layers[el];
		}
		if(obj!=null) obj.style.display = state;
	}
	
	// rewrites the html so that it reads expand or collapse
	if(state.toLowerCase()=="block"){		
		
		target.href= "javascript:toggleAll('" + el + "','')";
		target.innerHTML = "<span>- Collapse all</span>";
	}else{
		target.href = "javascript:toggleAll('" + el + "','block')";
		target.innerHTML = "<span>+ Expand all</span>";
	}
}




// ROLLOVER REPLACE IMAGE

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;
}
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 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 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];}
}