var popup, displayBoxPos, isWorking, divobj, req;
isWorking = false;

function setFocus(id)
{
    var inputobj = document.getElementById(id);
    if(inputobj)
    {
        inputobj.focus();
    }
}

function findElementPos(obj)
{  
  var curleft=0;
  var curtop = 0;
  if( obj.offsetLeft == 0 || obj.offsetTop == 0 ) {
    
    if (obj.offsetParent) {
      curleft = obj.offsetLeft
      curtop = obj.offsetTop
      while (obj = obj.offsetParent) {
        curleft += obj.offsetLeft
        curtop += obj.offsetTop
      }
    }    
  }
  else {
    curleft = obj.offsetLeft;
    curtop = obj.offsetTop;
  } 
  return [curleft,curtop];  
}

function GetPopupDivByName()
{
    var popup = document.getElementById('popupplaceholder');
    if(popup==null)
    {
        popup = document.body.insertBefore(document.createElement("div"), document.body.firstChild);
        popup.style.position = 'absolute';
        popup.style.display = 'block';
        popup.style.zIndex = 100;
        popup.id = 'popupplaceholder';
    }
    return popup;
}

function CallbackResponse() 
{	
    var qscreenHeight, qscreenWidth, popupLeftPos, popupTopPos, moreLeftPos,moreTopPos,popupWidth,popupHeight;

	if (req.readyState == 4) 
	{		
		var response = eval("(" + req.responseText + ")");
		var template = response.jsonRecord.Template.replace(/"/g, "\"");
        popup = GetPopupDivByName();        
        if(popup!=null)
        {
            popup.innerHTML = template;
            popup.style.top = (displayBoxPos[1]+70) + 'px';
            popup.style.left = (displayBoxPos[0]-70) + 'px';
            if(displayBoxPos[0]<100) popup.style.left = '100px';
            popup.style.left = '440px';
            popup.style.top = '140px';
            
                //calc left and top pos here
				qscreenHeight = document.body.clientHeight;
				qscreenWidth = document.body.clientWidth;									
				popupLeftPos = 100;
				popupTopPos = 260;
				popupWidth = 410 ;
				popupHeight = 200;
				
				moreLeftPos = displayBoxPos[0];
				moreTopPos = displayBoxPos[1];
								
				if (document.body.scrollTop > 0 && moreTopPos < 100) { popupTopPos = moreTopPos + (document.body.scrollTop);}
				else if ((document.body.scrollTop > 0 && moreTopPos > 100)){ popupTopPos = moreTopPos + (document.body.scrollTop*0.4);}
				
				popupLeftPos = qscreenWidth/3;
				
				popup.style.left = popupLeftPos;
				popup.style.top = popupTopPos;	
        }
        isWorking = false;
        divobj.style.cursor = 'default';
        
        setFocus('emailaddress');
        setFocus('sname');       
	}
}
function createXMLHTTPObject() {
    var xmlhttp = false;
    for (var i=0;i<XMLHttpFactories.length;i++) {
        try {
             xmlhttp = XMLHttpFactories[i]();
        }
        catch (e) {
            continue;
        }
        break;
    }
    return xmlhttp;
}

function PopupCallback(tmpl, nameValuePairs)
{  
   if(isWorking) return;   
    isWorking = true;
    req = createXMLHTTPObject();
	var url = "/mygallery/pop_up/popup_callback.asp?tmpl=" + tmpl + nameValuePairs + "&rnd=" + Math.random();
	req.open("GET", url, true);
	req.onreadystatechange = CallbackResponse;
	req.send(null);
	return true;
}

function doGalleryPopUP(divobj,displayBox,mgapnum,mgshid,mgfid) {
    this.divobj = divobj;
    divobj.style.cursor = 'wait';
    displayBoxPos = findElementPos(document.getElementById(displayBox));     
    if (displayBox == "add_item")
        { PopupCallback("DoAddItem", "&disp=~str-Favorites-/~" + mgapnum + "mgshid=" + mgshid + "&mgfid=" + mgfid); }
    else if (displayBox == "email_your_favorites")
		{ PopupCallback("EmailYourFavorites", "&disp=~str-Favorites-/~" + mgapnum + "mgshid=" + mgshid + "&mgfid=" + mgfid);  
		   }
    else PopupCallback("AddItem", "&disp=~str-Favorites-/~" + mgapnum + "mgshid=" + mgshid + "&mgfid=" + mgfid);
}

function doGalleryPopUPtest() { alert('hi');}

function validateSpamAddress(email) {
var BlackList = new Array('abuse@','admin@','administrator@','anonymous@','archive@','billing@','bin@','blacklist@','blocklist@','blockme@','brasscannon@','contact@','crushspam@','daemon@','everyone@','ftp@','games@','guest@','help@','hostmaster@','info@','ipadmin@','istserv@','junk@','listmanager@','listme@','listproc@','listserv@','lyris@','mailer-daemon@','mailer@','mailman-owner@','majordomo@','marketing@','myspam@','newgroups-request@','newgroups@','news@','newsgroups-request@','newsgroups@','noc@','nospam@','null@','nulljob@','office@','operations@','other@','postmaster@','privacy@','root@','security@','sendmenospam@','service@','setup@','spam69@','spam@','spamforwarder@','spamhere@','spamiam@','spamme@','spammehere@','spamtrap@','support@','sys@','sysadmin@','sysadmins@','systemadmin@','uce@','usenet@','usenetonly@','userhelp@','uucp@','webmaster@','www@','spam@','spamtrap@','spamforwarder@','@home.com','@altavista.net','@ivillage.net');
for (k=0; k < BlackList.length; k++)
                  {
                     if (String(email).indexOf(BlackList[k]) != -1)
                     {
                        return false;                        
                     }
                  }
        return true;
}

function validate(email) {
   var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
   var address = email;
   if(reg.test(address) == false) {
      return false;
   }
   else { return true; }
}
String.prototype.trim = function () {
    return this.replace(/^\s*/, "").replace(/\s*$/, "");
}

String.prototype.removesinglequote = function () {
    return this.replace(/\'*/, "").replace(/\'*$/, "");
}
String.prototype.removespecialchars = function () {
    return this.replace(/[^a-zA-Z 0-9]+/, "").replace(/[^a-zA-Z 0-9]+/, "");
}

function filterNum(str) {
var re;
re = /\$|,|@|#|~|`|\%|\*|\^|\&|\(|\)|\+|\=|\[|\-|\_|\]|\[|\}|\{|\;|\:|\"|\<|\>|\?|\||\\|\!|\$/g;
return str.replace(re, "");
}

function limitText(limitField, limitNum) {
	if (limitField.value.length > limitNum) {
		limitField.value = limitField.value.substring(0, limitNum);
	} 
}

function nl2br(text){
     var re_nlchar;
     text = escape(text);
      if(text.indexOf('%0D%0A') > -1){
      re_nlchar = /%0D%0A/g ;
      }else if(text.indexOf('%0A') > -1){
      re_nlchar = /%0A/g ;
      }else if(text.indexOf('%0D') > -1){
      re_nlchar = /%0D/g ;
      }      
      return unescape( text.replace(re_nlchar,'crlfvb')); 
}

function Browser() {

  var ua, s, i;

  this.isIE    = false;
  this.isNS    = false;
  this.version = null;

  ua = navigator.userAgent;

  s = "MSIE";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isIE = true;
    this.version = parseFloat(ua.substr(i + s.length));
    return;
  }

  s = "Netscape6/";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isNS = true;
    this.version = parseFloat(ua.substr(i + s.length));
    return;
  }

  // Treat any other "Gecko" browser as NS 6.1.

  s = "Gecko";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isNS = true;
    this.version = 6.1;
    return;
  }
}
// Global object to hold drag information.

var browser = new Browser();
var dragObj = new Object();
dragObj.zIndex = 0;
var x, y;

function dragStart(event, id) {

  var el;
  // If an element id was given, find it. Otherwise use the element being
  // clicked on.
  if (id)
     { dragObj.elNode = document.getElementById(id);}
  else {     
    if (browser.isIE)
      dragObj.elNode = window.event.srcElement;
    if (browser.isNS)
      dragObj.elNode = event.target;
    // If this is a text node, use its parent element.

    if (dragObj.elNode.nodeType == 3)
      dragObj.elNode = dragObj.elNode.parentNode;
  }


  // Get cursor position with respect to the page.

  findMousePos(event);
  // Save starting positions of cursor and element.

  dragObj.cursorStartX = x;
  dragObj.cursorStartY = y;
  dragObj.elStartLeft  = parseInt(dragObj.elNode.style.left, 10);
  dragObj.elStartTop   = parseInt(dragObj.elNode.style.top,  10);

  if (isNaN(dragObj.elStartLeft)) dragObj.elStartLeft = 0;
  if (isNaN(dragObj.elStartTop))  dragObj.elStartTop  = 0;

  // Update element's z-index.

  dragObj.elNode.style.zIndex = ++dragObj.zIndex;

  // Capture mousemove and mouseup events on the page.

  if (browser.isIE) {
    document.attachEvent("onmousemove", dragGo);
    document.attachEvent("onmouseup",   dragStop);
    window.event.cancelBubble = true;
    window.event.returnValue = false;
  }
  if (browser.isNS) {
    document.addEventListener("mousemove", dragGo,   true);
    document.addEventListener("mouseup",   dragStop, true);
    event.preventDefault();
  }
}

function dragGo(event) {

  findMousePos(event);

  // Move drag element by the same amount the cursor has moved.

  dragObj.elNode.style.left = (dragObj.elStartLeft + x - dragObj.cursorStartX) + "px";
  dragObj.elNode.style.top  = (dragObj.elStartTop  + y - dragObj.cursorStartY) + "px";

  if (browser.isIE) {
    window.event.cancelBubble = true;
    window.event.returnValue = false;
  }
  if (browser.isNS)
    event.preventDefault();
}

function dragStop(event) {

  // Clear the drag element global.

  dragObj.elNode = null;

  // Stop capturing mousemove and mouseup events.

  if (browser.isIE) {
    document.detachEvent("onmousemove", dragGo);
    document.detachEvent("onmouseup",   dragStop);
  }
  if (browser.isNS) {
    document.removeEventListener("mousemove", dragGo,   true);
    document.removeEventListener("mouseup",   dragStop, true);
  }
}

function findMousePos(event)
{ 
    if (browser.isIE) {
        x = window.event.clientX + document.documentElement.scrollLeft
          + document.body.scrollLeft;
        y = window.event.clientY + document.documentElement.scrollTop
          + document.body.scrollTop;
    }
    if (browser.isNS) {
        x = event.clientX + window.scrollX;
        y = event.clientY + window.scrollY;
    }
}