// opens a popup window 
function openPopup(url) {
			var x = Math.round(((screen.availWidth-300) / 2) + 100);
			if (window.screenX) { x = window.screenX + 300; } else { if (window.screenLeft) { x = window.screenLeft + 300; }}
			var y = Math.round(((screen.availHeight-300) / 2) * 0.7);
			var windowRef = window.open(url,'popup','width=300,height=300,left='+x+',top='+y+',scrollbars=no,toolbar=no,menubar=no,location=no,directories=no,status=no,resizable=no');
			return(windowRef);
}

// preloads images for dynamic menus
document.onLoad = MM_preloadImages("/imi/assets/img/triangle-open.gif","/imi/assets/img/triangle-closed.gif");

// opens or closes the left column sub-menus, depending on initial state
function toggleMenu(obj) {
 	var menuRef = MM_findObj(obj);
	var imgRef = MM_findObj(obj+'Triangle');
	
	if (menuRef.style) {
		if(menuRef.style.display == "none") {
			menuRef.style.display = "block";
			imgRef.src = "/imi/assets/img/triangle-open.gif";
		} else {
			menuRef.style.display = "none";
			imgRef.src = "/imi/assets/img/triangle-closed.gif";
		}
	}
}

// standard Macromedia Dreamweaver functions, used by above functions
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_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];}}
}