userAgent = window.navigator.userAgent;
browserVers = parseInt(userAgent.charAt(userAgent.indexOf("/")+1),10);
function findElement(n,ly) {
	if (browserVers < 4)		return document[n];
	var curDoc = ly ? ly.document : document;
	var elem = curDoc[n];
	if (!elem) {
		for (var i=0;i<curDoc.layers.length;i++) {
			elem = findElement(n,curDoc.layers[i]);
			if (elem) return elem;
		}
	}
	return elem;
}

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

function changeImages() {
	if (document.images) {
		var img;
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			img = null;
			if (document.layers) {
				img = findElement(changeImages.arguments[i],0);
			}
			else {
				img = document.images[changeImages.arguments[i]];
			}
			if (img) {
				img.src = changeImages.arguments[i+1];
			}
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		HIMS_home_over = newImage("home_images/HIMS_home-over.gif");
		HIMS_about_over = newImage("home_images/HIMS_about-over.gif");
		HIMS_GetHelpNow_over = newImage("home_images/HIMS_GetHelpNow-over.gif");
		HIMS_center_picture_HIMS_home_over = newImage("home_images/HIMS_center_picture-HIMS_ho.jpg");
		HIMS_faa_over = newImage("home_images/HIMS_faa-over.gif");
		HIMS_seminars_over = newImage("home_images/HIMS_seminars-over.gif");
		HIMS_disease_over = newImage("home_images/HIMS_disease-over.gif");
		HIMS_identification_over = newImage("home_images/HIMS_identification-over.gif");
		HIMS_intervention_over = newImage("home_images/HIMS_intervention-over.gif");
		HIMS_treatment_over = newImage("home_images/HIMS_treatment-over.gif");
		HIMS_aftercare_over = newImage("home_images/HIMS_aftercare-over.gif");
		HIMS_monitoring_over = newImage("home_images/HIMS_monitoring-over.gif");
		HIMS_program_over = newImage("home_images/HIMS_program-over.gif");
		HIMS_education_over = newImage("home_images/HIMS_education-over.gif");
		HIMS_referral_over = newImage("home_images/HIMS_referral-over.gif");
		preloadFlag = true;
	}
}
var popUpWin=0;
function popUpWindow(URLStr, left, top, width, height)
{
  left = left == 'center' ? (screen.width/2) - width/2 : left;
  top = top == 'center' ? (screen.height/2) - height/2 : top;
  if(popUpWin)
  {
    if(!popUpWin.closed) popUpWin.close();
  }
  popUpWin = open(URLStr, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
}