function CenterWrapper(){
    var BodyWidth =   document.body.clientWidth;
    var WrapperWidth =   document.getElementById("wrapper").clientWidth;
    if (BodyWidth >= WrapperWidth){
		var	BodyWidth2 = BodyWidth/2;
		var WrapperWidth2 = WrapperWidth/2;
		var leftOffset = BodyWidth2 - WrapperWidth2;
		
		document.getElementById("wrapper").style.position = "absolute";
		document.getElementById("wrapper").style.marginLeft = leftOffset + "px";
    }
}

function SwitchClass(IDin, ElClass){
    /* Reveal sub menu */
    document.getElementById(IDin).className=ElClass;
}
var ImageID = "MenuPopup";
function ShowMenuImage(ImageName){
    
    var ParentID = "MenuItemImage";
    var newImage = document.createElement("img");
    newImage.src =  ImageName + '.jpg';
    // Create Image
    newImage.setAttribute("id",ImageID);
    newImage.style.border ="1px solid white";   
    document.getElementById(ParentID).appendChild(newImage);

    document.getElementById(ParentID).style.display="block";  
}

function remove_element(ElementID){
        var elem = document.getElementById(ElementID)
	if (elem != null){ 
	  elem.parentNode.removeChild(elem);
	}
}