function showSection(_sectionName){

    if (_sectionName == null){
        return;
    }

    //Search all nodes, if classname=menuSection then add to 'hide' list
    var searchClass = "menuSection";
    var node = null;
    var tag = null;
	var classElements = new Array();
	var i;
	var j;
	
	if ( node == null )
		node = document;
		
	if ( tag == null )
		tag = '*';
		
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;

	var pattern = new RegExp("(^|\s)"+searchClass+"(\s|$)");
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}    

    //Hide all sections in list  
    for(i = 0; i < j; i++){
        classElements[i].style.display="none";
    }
    
    //Now make our selected section visible
    document.getElementById(_sectionName).style.display="block";
}