function dpSmartLink(u,n,w,h,p) { // v1.4 by David Powers
  var a,j,k,x,y,f='';if(!n){n='';}if(w){f+='width='+w+',';}if(h){f+='height='+h+',';}
  if(p){p=p.split(':');if(p[0]!='z'){p[0]=='c'?(x=(screen.width-w)/2):x=p[0];f+='left='+x+',';}
  if(p[1]!='z'){if(p[0]=='c'){y=(screen.height-h-p[1])/2;if(navigator.appName.indexOf('Op')!=-1){
  y-=96;y=y<0?0:y;}}else{y=p[1];}f+='top='+y+',';}}a=arguments.length;if(a>5){for (k=5;k<a;k++){
  switch(arguments[k]){case 'all':f+='toolbar,menubar,location,scrollbars,status,resizable,';break;
  case 't':f+='toolbar,';break; case 'm':f+='menubar,';break;case 'l':f+='location,';break;
  case 'sc':f+='scrollbars,';break;case 's':f+='status,';break;case 'r':f+='resizable,';}}}
  if(f.charAt(f.length-1)==','){f=f.slice(0,-1);}j=window.open(u,n,f);j.focus();
  document.MM_returnValue=false;
}

<!-- nav bar rollovers -->

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 = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		ati_nb_home_over = newImage('images/ati_nb_home_over.gif');
		ati_nb_acupressure_over = newImage('images/ati_nb_acupressure_over.gif');
		ati_nb_whychoose_over = newImage('images/ati_nb_whychoose_over.gif');
		ati_nb_schedule_over = newImage('images/ati_nb_schedule_over.gif');
		ati_nb_career_over = newImage('images/ati_nb_career_over.gif');
		ati_nb_apply_over = newImage('images/ati_nb_apply_over.gif');
		ati_nb_alumni_over = newImage('images/ati_nb_alumni_over.gif');
		ati_nb_clinic_over = newImage('images/ati_nb_clinic_over.gif');
		ati_nb_conted_over = newImage('images/ati_nb_conted_over.gif');
		ati_nb_contact_over = newImage('images/ati_nb_contact_over.gif');
		preloadFlag = true;
	}
}