function newImage(arg) {
  if (document.images) {
    rslt = new Image();
    rslt.src = arg;
    return rslt;
  }
}

function changeImages() {
  if (document.images && (preloadFlag == true)) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = '/skins/artsy/images/' + changeImages.arguments[i+1];	  
    }
  }
}

function changeContentImages() {
  if (document.images && (preloadFlag == true)) {
    for (var i=0; i<changeContentImages.arguments.length; i+=2) {
      document[changeContentImages.arguments[i]].src = changeContentImages.arguments[i+1];
    }
  }
}

/*
var preloadFlag = false;
function preloadImages() {
  if (document.images) {
    // BEFORE YOU UNCOMMENT THESE LINES, MAKE SURE THE IMAGES ACTUALLY EXIST
    // nav_laservision_over = newImage("http://www.joneseyecenters.com/skins/artsy/images/nav_laservision.gif");
    // nav_senioreye_over = newImage("http://www.joneseyecenters.com/skins/artsy/images/nav_senioreyehealth.gif");
    // nav_conditions_over = newImage("http://www.joneseyecenters.com/skins/artsy/images/nav_conditions.gif");
    // nav_whychoose_over = newImage("http://www.joneseyecenters.com/skins/artsy/images/nav_whychoose.gif");
    // nav_doctors_over = newImage("http://www.joneseyecenters.com/skins/artsy/images/nav_doctors.gif");
    // nav_news_over = newImage("http://www.joneseyecenters.com/skins/artsy/images/nav_news.gif");
    // nav_events_over = newImage("http://www.joneseyecenters.com/skins/artsy/images/nav_events.gif");
    // nav_locations_over = newImage("http://www.joneseyecenters.com/skins/artsy/images/nav_locations.gif");
    // nav_forms_over = newImage("http://www.joneseyecenters.com/skins/artsy/images/nav_forms.gif");
    preloadFlag = true;
  }
}*/

var preloadFlag = false;
function preloadImages() {
  if (document.images) {    
    nav_laservision_over = newImage('/skins/artsy/images/nav_laservision.gif');
    nav_senioreye_over = newImage('/skins/artsy/images/nav_senioreyehealth.gif');
    nav_conditions_over = newImage('/skins/artsy/images/nav_conditions.gif');
    nav_whychoose_over = newImage('/skins/artsy/images/nav_whychoose.gif');
    nav_doctors_over = newImage('/skins/artsy/images/nav_doctors.gif');
    nav_news_over = newImage('/skins/artsy/images/nav_news.gif');
    nav_events_over = newImage('/skins/artsy/images/nav_events.gif');
    nav_locations_over = newImage('/skins/artsy/images/nav_locations.gif');
    nav_forms_over = newImage('/skins/artsy/images/nav_forms.gif');
    preloadFlag = true;
  }
}

function popup_MIT()
{	
	if(window.location.host.indexOf('.com') != -1 || window.location.host.indexOf('.org') != -1)	
	{
		var path = 'http://' + window.location.host + '/mit/referrals_main.cfm';
		window.open(path,'referrals','scrollbars,resizable,width=415,height=550');
	}			
}	

function PopUpMIT()
{	
	if((document.cookie.indexOf("MITEXPOSURE") == -1) && (window.location.href.indexOf('nomit') == -1))
	{	
		if(window.location.host.indexOf('.com') != -1 || window.location.host.indexOf('.org') != -1)	
		{
			var path = 'http://' + window.location.host + '/mit/referrals_main.cfm';
			window.open(path,'referrals','scrollbars,resizable,width=415,height=550');
		}		
	}
} 

function emailThisPage(SiteID) 
{	
	window.open('/email/email_this_page_form.cfm?thispage=' + escape(window.location.href), 'EmailPagePopUp', 'scrollbars,resizable,width=400,height=480'); 
}

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function flashPromo()
{
	var path = 'http://' + window.location.host + '/flash_promo.cfm';
	window.open(path,'flashpromo','scrollbars,resizable,width=580,height=500');
}