// JavaScript Document
function getInternetExplorerVersion() {
    var rv = -1; // Return value assumes failure.
    if (navigator.appName == 'Microsoft Internet Explorer') {
        var ua = navigator.userAgent;
        var re = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
        if (re.exec(ua) != null)
            rv = parseFloat(RegExp.$1);
    }
    return rv;
}

var IE6=false;
var strChUserAgent = navigator.userAgent;
var intSplitStart = strChUserAgent.indexOf("(",0);
var intSplitEnd = strChUserAgent.indexOf(")",0);
var strChMid = strChUserAgent.substring(intSplitStart, intSplitEnd);

isIE=document.all;
isNN=!document.all&&document.getElementById;
isN4=document.layers;
isHot=false;

function hidePopUpWindow(){
  hide('FriendFormConfirm');show('FriendForm');
  whichDog=isIE ? document.all.poplayer : document.getElementById("poplayer");  
  whichBgd=isIE ? document.all.overlay : document.getElementById("overlay"); 
  if (isIE||isNN) whichBgd.style.visibility="hidden";
  else if (isN4) document.overlay.visibility="hide";
  if (isIE||isNN) whichDog.style.visibility="hidden";
  else if (isN4) document.poplayer.visibility="hide";
  return false;
}

function showPopUpWindow(frm){
  clearPopUpWindow(frm); hide('FriendFormConfirm');show('FriendForm');
  if ((strChMid.indexOf("MSIE 6") != -1)||(strChMid.indexOf("MSIE 5") != -1)) 
	{IE6 = true;}
  if (IE6==true){
	alert('Maxtel is not compatible with Internet Explorer 6');
  } else {
    whichDog=isIE ? document.all.poplayer : document.getElementById("poplayer");  
    whichBgd=isIE ? document.all.overlay : document.getElementById("overlay"); 
	document.getElementById('overlay').style.height=document.getElementById('container').scrollHeight+"px";
	if (isIE||isNN) whichBgd.style.visibility="visible";
  	else if (isN4) document.overlay.visibility="show";
  	if (isIE||isNN) whichDog.style.visibility="visible";
  	else if (isN4) document.poplayer.visibility="show";
  }
  return false;
}

function clearPopUpWindow(frm){
  frm.email_friend.value='';
  frm.message.value='';
  return false;
}