// JavaScript Document


function displayElement(elemId,action) {
  var object = document.getElementById(elemId);
  if(action == "show" ) {
    object.style.display = "";
  }
  else {
    object.style.display = "none";
  }
}

function setMenuSelection(elemId,action){
  var object = document.getElementById(elemId);
  if(action == "select" ) {
    object.className = 'selected';
  }
  else {
    object.className = '';
  }
}

function displayBlock(sourceText){
	var temp = new Array();
	temp = sourceText.split("/");
	var blockName = temp[0];
	var selectedItem = temp[1];
	var maxItems = temp[2];
	for(var i=1;i<=maxItems;i++){
		displayElement(blockName+i+"data","hide");
		setMenuSelection(blockName+i+"link","unselect");
	}
	displayElement(blockName+selectedItem+"data","show");
	setMenuSelection(blockName+selectedItem+"link","select");
}