//bookmark this page
function bookmarkPage(siteName, bookmarkName) {
	//if (bookmarkName != "") {bookmarkName = ' - ' + bookmarkName;}
 	if (navigator.userAgent.indexOf("MSIE") != -1) {
		alert('Press Control+D to bookmark this site.');
		//window.external.AddFavorite(window.location.href, siteName + bookmarkName);
 	} else {
		alert('Press Control+D to bookmark this site.');
	}
}


//variables used to center pop-up windows
var width = screen.width;
var height = screen.height;
var popUpWidth = 0;
var popUpHeight = 0;
var positionTop = 0;
var positionLeft = 0;

function openWindow(pageURL,windowName,pWidth,pHeight,pResize,pScrollbars,pStatus)
{
 	positionTop = ((height/2) - (pHeight/2));
 	positionLeft = ((width/2) - (pWidth/2));
 	popup=window.open(pageURL,windowName, config='width=' + pWidth + ',height=' + pHeight + ',left=' + positionLeft + ',top=' + positionTop + ',resizable=' + pResize + ',menubar=0,location=0,directories=0,toolbar=0,scrollbars=' + pScrollbars + ',status=' + pStatus);
}

function closePopup(pageURL) {
	opener.location = pageURL;
	self.close();
}

function registerUser(from) {
	pWidth = 409;
	pHeight = 251;
	positionTop = ((height/2) - (pHeight/2));
	positionLeft = ((width/2) - (pWidth/2));
	popup=window.open('/registerUser.cfm?frPg='+from,'Registration', config='width=' + pWidth + ',height=' + pHeight + ',left=' + positionLeft + ',top=' + positionTop + ',resizable=0,menubar=0,location=0,directories=0,toolbar=0,scrollbars=0,status=0');
	popup.focus();
}

function openLogOffWindow() {
	pWidth = 409;
	pHeight = 195;
	positionTop = ((height/2) - (pHeight/2));
	positionLeft = ((width/2) - (pWidth/2));
	popup=window.open('/site_tools/popup/logoff.cfm','LogOff', config='width=' + pWidth + ',height=' + pHeight + ',left=' + positionLeft + ',top=' + positionTop + ',resizable=0,menubar=0,location=0,directories=0,toolbar=0,scrollbars=0,status=0');
	popup.focus();
}

function executeLogOff() {
	window.close();
	opener.location.href = '/index.cfm';
}

// Image Rollover function
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_nbGroup(event, grpName) { //v6.0
  var i,img,nbArr,args=MM_nbGroup.arguments;
  if (event == "init" && args.length > 2) {
    if ((img = MM_findObj(args[2])) != null && !img.MM_init) {
      img.MM_init = true; img.MM_up = args[3]; img.MM_dn = img.src;
      if ((nbArr = document[grpName]) == null) nbArr = document[grpName] = new Array();
      nbArr[nbArr.length] = img;
      for (i=4; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
        if (!img.MM_up) img.MM_up = img.src;
        img.src = img.MM_dn = args[i+1];
        nbArr[nbArr.length] = img;
    } }
  } else if (event == "over") {
    document.MM_nbOver = nbArr = new Array();
    for (i=1; i < args.length-1; i+=3) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = (img.MM_dn && args[i+2]) ? args[i+2] : ((args[i+1])? args[i+1] : img.MM_up);
      nbArr[nbArr.length] = img;
    }
  } else if (event == "out" ) {
    for (i=0; i < document.MM_nbOver.length; i++) {
      img = document.MM_nbOver[i]; img.src = (img.MM_dn) ? img.MM_dn : img.MM_up; }
  } else if (event == "down") {
    nbArr = document[grpName];
    if (nbArr)
      for (i=0; i < nbArr.length; i++) { img=nbArr[i]; img.src = img.MM_up; img.MM_dn = 0; }
    document[grpName] = nbArr = new Array();
    for (i=2; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = img.MM_dn = (args[i+1])? args[i+1] : img.MM_up;
      nbArr[nbArr.length] = img;
  } }
}

/*library slide popup*/
function queryString(val) {
	var q  = unescape(location.search.substr(1)).split('&');

	for(var i=0; i<q.length; i++) {
		var t=q[i].split('=');
		if (t[0].toLowerCase()==val.toLowerCase()) return t[1];
	}
	return '';
}

function slideNavigation(direction) {
	if (direction == 'previous') {slide--;}
	if (direction == 'next') {slide++;}
	slideImg.src = "/images/library/slide/" + topic + "/slides/" + slide + ".JPG";		
	document.getElementById("slide-counter").innerHTML = "Slide " +slide;
	if (slide == 1) {document.getElementById('btn-previous').style.display = "none";} else {document.getElementById('btn-previous').style.display = "inline";}
	if (slide == maxSlide) {document.getElementById('btn-next').style.display = "none";document.getElementById('btn-next_placeholder').style.display = "inline";} else {document.getElementById('btn-next').style.display = "inline";document.getElementById('btn-next_placeholder').style.display = "none";}
}


function checkEMail()
{

  if(document.registerform.DoctorUserName.value.length  < 4 )
  {
    alert('The User Name you have chosen is less than 4 characters. The User Name should have atleast 4 characters.');
	document.registerform.DoctorUserName.focus();
	return false;
  }
  
  if(document.registerform.DoctorPassword.value.length  < 6 )
  {
    alert('The Password you have chosen is less than 6 characters. The Password should have atleast 6 characters.');
	document.registerform.DoctorPassword.focus();
	return false;
  }
  
  if(document.registerform.DoctorPassword.value != document.registerform.Confirm_DoctorPassword.value )
  {
    alert('Your passwords do not match. Please re-enter your passwords.');
	document.registerform.Confirm_DoctorPassword.focus();
	return false;
  }
  
  //for email validation
  var emailaddress=document.registerform.DoctorEMail.value;
  //alert(emailaddress);
  var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
  //alert(filter.test(emailaddress))
  if (filter.test(emailaddress))
  {
    return true;
  }
  else
  {
     alert("Please input a valid email address!")
	 document.registerform.DoctorEMail.focus();
     return false;
  }
}