function initialise(){
	setMenu();
}
function setMenu(){

	var loc = document.location.href;
	var beginIndex = loc.lastIndexOf("/") + 1;
	var endIndex = loc.lastIndexOf(".");
	var pageId = loc.substring(beginIndex, endIndex) + "_tab";
	
	tabs = $A(document.getElementsByClassName('tab'));
	tabs.each(function(tab){
		if(Element.hasClassName(tab, 'tabSelected')){
	        	Element.removeClassName(tab, 'tabSelected');
		}
	});
	Element.addClassName(pageId, 'menuItemSelected');
}