/* javascript */

//bookmark 
function bookMarkThisPage() {
	var url = document.location.toString();
	var title = document.title;
	if (document.all && parseInt(navigator.appVersion) >= 4) {
		window.external.AddFavorite(url,title);
	} else if (navigator.appName == "Netscape") {
		alert("You must press CTRL-D to bookmark this page");
	}
}

function printThisPage() {
	eWindow = window.open('','printWindow');
	document.getElementById('printHTML').value = document.getElementById('content').innerHTML;
	document.getElementById('printThisPageForm').submit();	
}

function emailThisPage() {
	eWindow = window.open('','emailWindow','width=400,height=500,scrollbars=no,resizable=yes');
	document.getElementById('emailThisPageForm').submit();	
}

function preload(imgObj,imgSrc) {
	if (document.images) {
		eval(imgObj+' = new Image()')
		eval(imgObj+'.src = "'+imgSrc+'"')
	}
}

var preloaded = false;
function changeImages() {
	if ( !preloaded ) return;
    for (var i=0; i<arguments.length; i+=2) {
	  document[arguments[i]].src = eval(arguments[i+1] + ".src");
    }

}

document.addEvent = function(object, eventType,fn, useCapture) {
	if (object.addEventListener) {
		object.addEventListener(eventType, fn, useCapture);
		return true;
	} else {
		if (object.attachEvent) {
			var r = object.attachEvent("on"+eventType, fn);
			return r;
		}
	}
};

document.getElementsByClassName = function(className) {
  var children = document.getElementsByTagName('*') || document.all;
  var elements = new Array();
  
  for (var i = 0; i < children.length; i++) {
    var child = children[i];
    var classNames = child.className.split(' ');
    for (var j = 0; j < classNames.length; j++) {
      if (classNames[j] == className) {
        elements.push(child);
        break;
      }
    }
  }
  return elements;
}

function preloadImages() {
	preload('nav_education_off', '/i/nav/education.gif');
	preload('nav_education_on', '/i/nav/education_on.gif');
	preload('nav_lifestyle_off', '/i/nav/lifestyle.gif');
	preload('nav_lifestyle_on', '/i/nav/lifestyle_on.gif');
	preload('nav_usertools_off', '/i/nav/usertools.gif');
	preload('nav_usertools_on', '/i/nav/usertools_on.gif');
	preload('nav_news_off', '/i/nav/news.gif');
	preload('nav_news_on', '/i/nav/news_on.gif');
	preload('nav_resources_off', '/i/nav/resources.gif');
	preload('nav_resources_on', '/i/nav/resources_on.gif');
	preload('nav_community_off', '/i/nav/community.gif');
	preload('nav_community_on', '/i/nav/community_on.gif');
	/*
	preload('nav_forums_off', '/i/nav/forums.gif');
	preload('nav_forums_on', '/i/nav/forums_on.gif');
	preload('nav_crew_off', '/i/nav/crew.gif');
	preload('nav_crew_on', '/i/nav/crew_on.gif');
	*/

	//education
	preload('nav_ldisorders_on', '/i/nav/sub/lung_disorders_on.gif');
	preload('nav_ldisorders_off', '/i/nav/sub/lung_disorders.gif');
	preload('nav_yourbody_on', '/i/nav/sub/yourbody_on.gif');
	preload('nav_yourbody_off', '/i/nav/sub/yourbody.gif');
	preload('nav_diagnosis_on', '/i/nav/sub/diagnosis_on.gif');
	preload('nav_diagnosis_off', '/i/nav/sub/diagnosis.gif');
	preload('nav_disease_on', '/i/nav/sub/diseasestages_on.gif');
	preload('nav_disease_off', '/i/nav/sub/diseasestages.gif');
	preload('nav_diet_on', '/i/nav/sub/dietlifestyle_on.gif');
	preload('nav_diet_off', '/i/nav/sub/dietlifestyle.gif');
	preload('nav_treatment_on', '/i/nav/sub/treatmentoptions_on.gif');
	preload('nav_treatment_off', '/i/nav/sub/treatmentoptions.gif');
	preload('nav_eresources_on', '/i/nav/sub/resources_on.gif');
	preload('nav_eresources_off', '/i/nav/sub/resources.gif');

	// lifestyle
	preload('nav_tips_off', '/i/nav/sub/tips.gif'); 
	preload('nav_tips_on', '/i/nav/sub/tips_on.gif');
	preload('nav_family_off', '/i/nav/sub/family.gif'); 
	preload('nav_family_on', '/i/nav/sub/family_on.gif');
	preload('nav_athome_off', '/i/nav/sub/athome.gif'); 
	preload('nav_athome_on', '/i/nav/sub/athome_on.gif');
	preload('nav_travel_off', '/i/nav/sub/travel.gif'); 
	preload('nav_travel_on', '/i/nav/sub/travel_on.gif');
	preload('nav_featured_off', '/i/nav/sub/featured.gif'); 
	preload('nav_featured_on', '/i/nav/sub/featured_on.gif');

	// usertools
	preload('nav_ldisorders2_off', '/i/nav/sub/lung_disorders.gif'); 
	preload('nav_ldisorders2_on', '/i/nav/sub/lung_disorders_on.gif');
	preload('nav_oxyfaq_off', '/i/nav/sub/oxygenfaqs.gif'); 
	preload('nav_oxyfaq_on', '/i/nav/sub/oxygenfaqs_on.gif');
	preload('nav_glossary_off', '/i/nav/sub/glossary.gif'); 
	preload('nav_glossary_on', '/i/nav/sub/glossary_on.gif');
	preload('nav_yourteam_off', '/i/nav/sub/yourcareteam.gif'); 
	preload('nav_yourteam_on', '/i/nav/sub/yourcareteam_on.gif');
	preload('nav_locator_off', '/i/nav/sub/locator.gif'); 
	preload('nav_locator_on', '/i/nav/sub/locator_on.gif');
	preload('nav_patientsonly_off', '/i/nav/sub/patientsonly.gif'); 
	preload('nav_patientsonly_on', '/i/nav/sub/patientsonly_on.gif');

	// news
	preload('nav_inews_off', '/i/nav/sub/industrynews.gif'); 
	preload('nav_inews_on', '/i/nav/sub/industrynews_on.gif');
	preload('nav_studies_off', '/i/nav/sub/oxygenfaqs.gif'); 
	preload('nav_studies_on', '/i/nav/sub/oxygenfaqs_on.gif');
	preload('nav_calendar_off', '/i/nav/sub/calendar.gif'); 
	preload('nav_calendar_on', '/i/nav/sub/calendar_on.gif');

	preloaded = true;
}

document.addEvent(window,'load',preloadImages, false);