/**
* Change the currently selected tab
* @param {DomNode} anchor The tab link the user clicked
* @returns {Boolean} Always FALSE
*/
function changeTab(anchor){
	
	var tabbox = anchor;
	var target;
	
	// Get tabbox container
	while(tabbox != null && (tabbox.className == null || tabbox.className.indexOf("tabbox") == -1)){
		tabbox = tabbox.parentNode;
		
		// Is H1 - Hx tag
		if(tabbox.nodeName.search(/^h[0-9]$/i) == 0){
			target = tabbox.parentNode;
		}
	}
	if(tabbox == null || target == null){
		return false;
	}
				
	
	// Find and unselect Current Tab
	var tag;
	for(var i = 0; i < tabbox.childNodes.length; i++){
		tag = tabbox.childNodes[i];
		
		// Selected Div
		if(tag.nodeName.toLowerCase() == "div" && tag.className != null && tag.className.indexOf("selected") > -1){
			tag.className = tag.className.replace("selected", "");
			break;
		}
	}
	
	// Select Tag
	if(target != null){
		target.className = (target.className || "") +" selected";
	}
	
	return false;
}


//image swap function for menu
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];}
}



//Hide and Show Div content 
function HideContent(d) {
document.getElementById(d).style.display = "none";
}
function ShowContent(d) {
document.getElementById(d).style.display = "block";
}
function ReverseDisplay(d) {
if(document.getElementById(d).style.display == "none") { document.getElementById(d).style.display = "block"; }
else { document.getElementById(d).style.display = "none"; }
}