function isNumberKey(evt)
      {
         var charCode = (evt.which) ? evt.which : event.keyCode
         if (charCode > 31 && (charCode < 48 || charCode > 57))
            return false;

         return true;
      }
	  
swfobject.addLoadEvent(setDateTab);
var activeTab;
var activeTabLink;
function setDateTab(){
	if(document.getElementById("coursedates")){
	var dateHolder = document.getElementById("coursedates");
	var tabBoxes = 	dateHolder.getElementsByTagName("div");
	var tabLinks = document.getElementById("tabs").getElementsByTagName("a");
	for (i = 1; i< tabBoxes.length; i++){
		tabBoxes[i].style.display = "none";
	}
	for (i=0; i< tabLinks.length; i++){
		tabLinks[i].onclick = function(){
			setActiveTab(this);
		}
	}
	activeTab = tabBoxes[0];
	activeTabLink = tabLinks[0];
	activeTabLink.className = "tabActive";
	
	}
}

function setActiveTab(actuator){
	if(actuator != activeTabLink){
activeTabLink.className = "tab";
activeTab.style.display = "none";
activeTabLink = actuator;
activeTab = document.getElementById(actuator.rel);
activeTab.style.display = "block";
activeTabLink.className = "tabActive";
	}
}