function openChatHelp() {
	var chathelp = window.open('/generalcancer/en/page/chat_help','chathelp','toolbar=0,scrollbars=1,location=0,status=0,menubars=0,resizable=1,width='+(screen.availWidth/2)+',height='+screen.availHeight);
	chathelp.window.moveTo((screen.width/2)-(0),(screen.height/2)-(400));
}

var profileChanged = false;
function verifyProfile() {
	if (profileChanged) {
		if (!confirm("Information on this page is not saved, are you sure you want to abandon it?"))
			return false;
	}
	return true;
}
	
Event.observe(window, 'load', function(){
  $$('a[rel]').each(function(element){
    new Tip(element, element.rel);
  });
});