var alertObject = null;


function myTrim(str) {
var n, ind1, ind2, ss;

	ind1 = 0;
	ind2 = str.length - 1;
	for(n = 0; n <= ind2 && str.substr(n, 1) == " "; n++, ind1++)
 			;
 	for(n = ind2; n >= ind1 && str.substr(n, 1) == " "; n--, ind2--)
 			;
 	if(ind2 >= ind1)
 		ss = str.substring(ind1, ind2+1);
 	else
 		ss = "";
 	return ss;
}

/*
	Function to open a window:

	url	-> Url to open in the window.
	target	-> Target window. Example: '_blank'.
	width	-> Width in pixels
	height	-> Height in pixels
	left	-> Left position
	top	-> Top position
	resizable	-> Resizable flag. Values: 'yes', 'no', '1', '0', true, false.
	scrollbars	-> Scrollbars flags. Values: 'yes', 'no', '1', '0', true, false.
*/
function OpenWindow(url, target, width, height, left, top, resizable, scrollbars)
{
	if(typeof(url) == 'undefined' || url == null) url = '';
	if(typeof(target) == 'undefined' || target == null) target = '';

	if(typeof(width) == 'undefined' || width == null) width = 275;
	if(typeof(height) == 'undefined' || height == null) height = 275;

	if(typeof(window.screen) == 'undefined') {
		var sw = 800;
		var sh = 600;
	} else {
		var sw = window.screen.width;
		var sh = window.screen.height;
	}

	if(typeof(left) == 'undefined' || left == null) left = Math.round(0.5 * (sw - width));
	if(typeof(top) == 'undefined' || top == null) top = Math.round(0.5 * (sh - height));

	if(typeof(resizable) == 'undefined' || resizable == 'no' || !resizable) resizable = 0;
	else resizable = 1;

	if(typeof(scrollbars) == 'undefined' || scrollbars == 'no' || !scrollbars) scrollbars = 0;
	else scrollbars = 1;

	var win = window.open(url, target, 'left=' + left + ',top=' + top + ',width=' + width + ',height=' + height + ',directories=0,location=0,menubar=0,resizable=' + resizable +',scrollbars=' + scrollbars + ',status=0,toolbar=0');
	win.focus();
	
	return win;
}


// Validates a date string in format dd/mm/yyyy
function checkDate(sinput) {

	var validformat = /^\d{1,2}\/\d{1,2}\/\d{4}$/;   //Basic check for format validity
	var returnval = false;
	
	if (validformat.test(sinput)) {
	  var arrdate = sinput.split("/");
	  
	  var monthfield = parseInt(arrdate[1], 10);
	  var dayfield = parseInt(arrdate[0], 10);
	  var yearfield = parseInt(arrdate[2], 10);
	  
	  var dayobj = new Date(yearfield, monthfield-1, dayfield);
	  
	  if ((dayobj.getMonth()+1 != monthfield)  ||  (dayobj.getDate() != dayfield)  ||  (dayobj.getFullYear() != yearfield))
	    returnval = false;
	  else
	    returnval = true;
	}
	return returnval;
}

// Validates an e-mail string
function checkEmail(str) {
	if(!str)
	  return false;
	var at = "@";
	var dot = ".";
	var lat = str.indexOf(at);
	var lstr = str.length;
	var ldot = str.indexOf(dot);
	if (str.indexOf(at) == -1){
	   return false;
	}

	if (str.indexOf(at) == -1  ||  str.indexOf(at) == 0  ||  str.indexOf(at) == lstr) {
	   return false;
	}

	if (str.indexOf(dot) == -1  ||  str.indexOf(dot) == 0  ||  str.indexOf(dot) == lstr) {
	    return false;
	}

	if (str.indexOf(at, (lat+1)) != -1) {
	    return false;
	}

	if (str.substring(lat-1, lat) == dot  ||  str.substring(lat+1, lat+2) == dot) {
	    return false;
	 }

	if (str.indexOf(dot, (lat+2)) == -1) {
	    return false;
	}
		
	if (str.indexOf(" ") != -1){
	    return false;
	}

 	return true;
}

// Return url prefix for absolute access to the site root
function GetRootPath() {
	return "/";
}

// Returns the media path name for a media id
function GetMediaPath(mediaid) {

	var spath = "store/media/";
	var ss = String(mediaid);
	while(ss.length < 10)
	  ss = "0"+ ss;
	spath += ss.substr(0, 4) +"/"+ ss.substr(4, 3) +"/"+ ss.substr(7, 3) +"/";
	
	return spath;
}

// Gets a image link scaled
function GetImageScaled(filename, width, height, constrain) {

	var img = "images/"+  filename;
	if(!constrain)
	  constrain = "0";
	else
	  constrain = "1";
	  
	if(!width  ||  isNaN(width))
	  width = 0;
	  
	if(!height  ||  isNaN(height))
	  height = 0;

	var ss = "scaleimg.php?img="+ img +"&width="+ width +"&height="+ height +"&constrain="+ constrain +"&rnd="+ parseInt(Math.random() * 10000);
	
	return ss;
}

// Gets a image link
function GetImage(filename) {

	var img = "images/"+  filename;
	return img;
}

// Gets a image link scaled from the store
function GetStoreScaled(mediaid, filename, width, height, constrain) {

	var img = GetMediaPath(mediaid) +  filename;
	if(!constrain)
	  constrain = "0";
	else
	  constrain = "1";
	  
	if(!width  ||  isNaN(width))
	  width = 0;
	  
	if(!height  ||  isNaN(height))
	  height = 0;
	  
	var ss = "scaleimg.php?img="+ img +"&width="+ width +"&height="+ height +"&constrain="+ constrain +"&rnd="+ parseInt(Math.random() * 10000);
	
	return ss;
}

// Gets a image link from the store
function GetStore(mediaid, filename) {

	var img = GetMediaPath(mediaid) + filename;
	return img;
}

// Returns the avatar path name for a user id
function GetAvatarPath(userid) {

	var sfile = "store/avatar/user/";
	var ss = String(userid);
	while(ss.length < 10)
	  ss = "0"+ ss;
	sfile += ss.substr(0, 4) +"/"+ ss.substr(4, 3) +"/"+ ss.substr(7, 3) +"/";
	
	return sfile;
}

// Gets an avatar image link scaled
function GetAvatarScaled(userid, filename, width, height, constrain) {

	var img;
	if(!constrain)
	  constrain = "0";
	else
	  constrain = "1";
	  
	if(!width  ||  isNaN(width))
	  width = 0;
	  
	if(!height  ||  isNaN(height))
	  height = 0;

	if(!filename  || filename == ""  ||  userid <= 0) {
	  if(!filename  || filename == "")
	    img = "store/avatar/avatardef.jpg";
	  else
	    img = "store/avatar/"+ filename;
	}
	else {
	  img = GetAvatarPath(userid) + filename;
	}
	var ss = "scaleimg.php?img="+ img +"&width="+ width +"&height="+ height +"&constrain="+ constrain +"&rnd="+ parseInt(Math.random() * 10000);
	
	return ss;
}

// Gets an avatar image
function GetAvatar(userid, filename) {

	var img;
	if(!filename  ||  filename == ""  ||  userid <= 0) {
	  if(!filename  ||  filename == "")
	    img = "store/avatar/avatardef.jpg";
	  else
	    img = "store/avatar/"+ filename;
	}
	else {
	  img = GetAvatarPath(userid) + $filename;
	}
	return img;
}

// Gets a image link for empty images
function GetEmptyImage(width, height) {

	var img = "images/empty.jpg";
	
	if(!width  ||  isNaN(width))
	  width = 0;
	  
	if(!height  ||  isNaN(height))
	  height = 0;

	var ss = "scaleimg.php?img="+ img +"&width="+ width +"&height="+ height +"&rnd="+ parseInt(Math.random() * 10000);
	return ss;
}


var arVersion = navigator.appVersion.split("MSIE");
var version = parseFloat(arVersion[1]);

// Fixes transparent PNG bug in IE
function fixPNG(myImage) 
{
    if ((version >= 5.5) && (version < 7) && (document.body.filters)) 
    {
       var imgID = (myImage.id) ? "id='" + myImage.id + "' " : "";
	   var imgClass = (myImage.className) ? "class='" + myImage.className + "' " : "";
	   var imgTitle = (myImage.title) ? 
		             "title='" + myImage.title  + "' " : "title='" + myImage.alt + "' ";
	   var imgStyle = "display:inline-block;" + myImage.style.cssText;
	   var strNewHTML = "<span " + imgID + imgClass + imgTitle
                  + " style=\"" + "width:" + myImage.width 
                  + "px; height:" + myImage.height 
                  + "px;" + imgStyle + ";"
                  + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
                  + "(src=\'" + myImage.src + "\', sizingMethod='scale');\"></span>";
	   myImage.outerHTML = strNewHTML;
    }
}

// Hides form and other elements (that render always at a top z-index)
function HideFormElements(doc)
{
	if(doc == undefined)
	  doc = document;
	var list, n;
	// Hides <select> objects
	list = doc.getElementsByTagName("select");
	for(n = 0; n < list.length; n++) {
	  list[n].style.visibility = "hidden";
	}
	// Hides flash <object> objects
	list = doc.getElementsByTagName("object");
	for(n = 0; n < list.length; n++) {
	  list[n].style.visibility = "hidden";
	}
	// Recurses on <iframe> objects
	list = doc.getElementsByTagName("iframe");
	for(n = 0; n < list.length; n++) {
	  list[n].style.visibility = "hidden";
	  if(list[n].contentDocument)
	    HideFormElements(list[n].contentDocument);
	}
}

// Reshow form elements
function ShowFormElements(doc)
{
	if(doc == undefined)
	  doc = document;
	var list, n;
	// Shows <select> objects
	list = doc.getElementsByTagName("select");
	for(n = 0; n < list.length; n++) {
	  list[n].style.visibility = "visible";
	}
	// Shows flash <object> objects
	list = doc.getElementsByTagName("object");
	for(n = 0; n < list.length; n++) {
	  list[n].style.visibility = "visible";
	}
	// Recurses on <iframe> objects
	list = doc.getElementsByTagName("iframe");
	for(n = 0; n < list.length; n++) {
	  list[n].style.visibility = "visible";
	  if(list[n].contentDocument)
	    ShowFormElements(list[n].contentDocument);
	}
}

// Sows a location in Google Maps window
function ViewLocation(locx, locy, stitle, clickevent)
{
	var div = document.getElementById("fullcontent");
	var w = div.offsetWidth;
	var h = div.offsetHeight;
	var ss = "<img src='"+ GetImage("transpgray.png") +"' onload='fixPNG(this)' width='"+ w +"' height='"+ h +"' />";
	var w2 = 400;
	var h2 = 360;

	ss += "<div style='position: absolute; left: "+ parseInt((w - w2) /2) +"px; top: 170px; width: "+w2+"px; height: "+h2+"px; background-color: #FFFFFF; border: 1px solid black; padding: 8px;'>";
	ss += "<div class='genericLeft'>"+ stitle +"</div>";
	ss += "<div class='genericRight'><a href='javascript:CloseAlert();GUnload();'>close</a></div>";
	ss += "<div class='spacer'></div>";
	ss += "<div id='gmap' style='width: "+ (w2-3) +"px; height: "+ (h2-20) +"px; border: 1px solid black;'></div>";
	ss += "<div class='spacer'></div>";
	ss += "</div>\n";

	var obj = document.createElement("div");
	alertObject = obj;
	obj.className = "popup1";
	obj.innerHTML = ss;
	obj.style.width = w2 + "px";
	obj.style.height = h2 + "px";
	
	div.appendChild(obj);
	
	var div2 = document.getElementById("gmap");
	if(div2)
	  LoadGmap(div2, locx, locy, clickevent);
	
	// Hides form elements
	HideFormElements();
}

function CloseAlert()
{
	if(alertObject) {
	  var div = document.getElementById("fullcontent");
	
	  div.removeChild(alertObject);
	  alertObject = null;
	}
	// Reshows form elements
	ShowFormElements();
}

// Rollover on any element: changes the first child image
function childImageOver(obj) {

	var img = obj.getElementsByTagName('IMG')[0];
	
	if(img) {
	  var ss = img.src;
	  if(ss.substr(ss.length - 8) != "Over.gif")
	    ss = ss.substr(0, ss.length - 4) + "Over.gif";
	  img.src = ss;
	}
}

// Idem rollout
function childImageOut(obj) {

	var img = obj.getElementsByTagName('IMG')[0];
	
	if(img) {
	  var ss = img.src;
	  if(ss.substr(ss.length - 8) == "Over.gif")
	    ss = ss.substr(0, ss.length - 8) + ".gif";
	  img.src = ss;
	}
}

// Gray button mouse events
function grayButtonOver() {
	if(this.getAttribute("tristateON") != "1") {
	  this.style.backgroundImage = "url(images/"+ this.getAttribute("imgPrefix") +"Over.gif)";
	  this.style.color = this.getAttribute("StyleTextOver");
	}
}

function grayButtonOut() {
	if(this.getAttribute("tristateON") != "1") {
	  this.style.backgroundImage = "url(images/"+ this.getAttribute("imgPrefix") +"Bg.gif)";
	  this.style.color = this.getAttribute("StyleTextNormal");
	}
}

function grayButtonClick() {
	doClickGrayButton(this);
}

function doClickGrayButton(button) {
	var tgroup = button.getAttribute("tristateGroup");
	if(tgroup) {
	  var els = document.getElementsByAttribute("tristateGroup", tgroup, button.parentNode);
	  for(var n = 0; n < els.length; n++) {
	    if(els[n] != button) {
	      els[n].setAttribute("tristateON", "0");
		  els[n].style.backgroundImage = "url(images/"+ els[n].getAttribute("imgPrefix") +"Bg.gif)";
		  els[n].style.color = els[n].getAttribute("StyleTextNormal");
		}
	  }
	  button.setAttribute("tristateON", "1");
	  button.style.backgroundImage = "url(images/"+ button.getAttribute("imgPrefix") +"Sel.gif)";
	  button.style.color = button.getAttribute("StyleTextOver");
	}
}

function doResetGrayButton(button) {
	if(typeof(button) == "string")
	  button = document.getElementById(button);
    button.setAttribute("tristateON", "0");
	button.style.backgroundImage = "url(images/"+ button.getAttribute("imgPrefix") +"Bg.gif)";
	button.style.color = button.getAttribute("StyleTextNormal");
}

function iniGrayButonEvents(divid, classid, imgPrefix, textOverColor, tristateGroup) {
	var lpane;
	if(typeof(divid) == "string")
	  lpane = document.getElementById(divid);
	else
	  lpane = divid;
	if(!lpane)
	  return;
	if(!classid || classid == "")
	  classid = "grayButton";
	var els = document.getElementsByClassName(classid, lpane);
	if(!imgPrefix)
	  imgPrefix = classid;
	  
	var textNormalColor;
	if(textOverColor == undefined)
	  textOverColor = "#FFF";

	for(var n = 0; n < els.length; n++) {
	  textNormalColor = els[n].style.color;
	  els[n].setAttribute("paneOwner", lpane);
	  els[n].setAttribute("imgPrefix", imgPrefix);
	  els[n].setAttribute("StyleTextNormal", textNormalColor);
	  els[n].setAttribute("StyleTextOver", textOverColor);
	  //els[n].onmouseover = grayButtonOver;
	  //els[n].onmouseout = grayButtonOut;
	  DHTMLSuite.commonObj.addEvent(els[n], "mouseover", grayButtonOver);
	  DHTMLSuite.commonObj.addEvent(els[n], "mouseout", grayButtonOut);
	  if(tristateGroup) {
	    els[n].setAttribute("tristateGroup", tristateGroup);
		if(els[n].getAttribute("tristateON") != "1")
		  els[n].setAttribute("tristateON", "0");
		else {
		  els[n].style.backgroundImage = "url(images/"+ imgPrefix +"Sel.gif)";
		  els[n].style.color = textOverColor;
		}
		DHTMLSuite.commonObj.addEvent(els[n], "click", grayButtonClick);
	  }
	}
}

// Returns the media type given a file name
function MediaFileType(sfile) {

	var ext = null;
	var ind = sfile.lastIndexOf(".");
	if(ind >= 0)
	  ext = (sfile.substring(ind)).toLowerCase();

	switch(ext) {
	  case ".gif":
	  case ".jpg":
	  case ".jpeg":
	  case ".png":
	  case ".bmp":
	  case ".tif":
	  case ".tiff":
	  case ".wmf":
	    return 1;
		break;
		  
	  case ".mp3":
	  case ".wav":
	  case ".amr":
	    return 3;
		break;
		  
	  case ".mpg":
	  case ".mpeg":
	  case ".avi":
	  case ".flv":
	  case ".wmv":
	  case ".dv":
	  case ".mov":
	  case ".asf":
	  case ".3gp":
	  case ".mp4":
	    return 2;
	    break;
	}
	
	return 0;
}

// Shows an alert box with the given html content and (aw x ah) size
function showAlertBox(shtml, aw, ah) {
	var div = document.getElementById("fullcontent");
	var w = div.offsetWidth;
	var h = div.offsetHeight;
	var ss = ""; //"<img src='"+ GetImage("transpgray.png") +"' onload='fixPNG(this)' width='"+ w +"' height='"+ h +"' />";

	ss += "<div style='position: absolute; left: "+ parseInt((w - aw) /2) +"px; top: 170px; width: "+aw+"px; height: "+ah+"px; background-color: #FFFFFF; border: 1px solid black; padding: 8px;'>";
	ss += "<div class='genericRight'><a href='javascript:CloseAlert();'>close</a></div>";
	ss += "<div class='spacer'></div>";

	ss += shtml;
	
	ss += "</div>\n";

	var obj = document.createElement("div");
	alertObject = obj;
	obj.className = "popup1";
	obj.innerHTML = ss;
	obj.style.width = aw + "px";
	obj.style.height = ah + "px";
	
	div.appendChild(obj);
	
	// Hides form elements
	HideFormElements();
}

function addslashes(str) {
	str=str.replace(/\'/g,'\\\'');
	str=str.replace(/\"/g,'\\"');
	str=str.replace(/\\/g,'\\\\');
	str=str.replace(/\0/g,'\\0');
	return str;
}
function stripslashes(str) {
	str=str.replace(/\\'/g,'\'');
	str=str.replace(/\\"/g,'"');
	str=str.replace(/\\\\/g,'\\');
	str=str.replace(/\\0/g,'\0');
	return str;
}

// Functions to calculate somebody's age
function makeDaysOfMonth(){
  var i = 0;
  this[i++] = 0; // dummy
  this[i++] = 31;
  this[i++] = 29;
  this[i++] = 31;
  this[i++] = 30;
  this[i++] = 31;
  this[i++] = 30;
  this[i++] = 31;
  this[i++] = 31;
  this[i++] = 30;
  this[i++] = 31;
  this[i++] = 30;
  this[i  ] = 31;
  this.length = i;
}

function calcAge(dd, mm, yy){

  var t, mon, day, year, DD, MM, YY, age;
  var MTB = new makeDaysOfMonth();
  YY   = parseInt(yy, 10);	// year of birth (4 digits)
  MM   = parseInt(mm, 10);	// month of birth (1-12)
  DD   = parseInt(dd, 10);	// date of birth (1-31)
  
  if (MTB[MM] < DD || DD < 1)
    return -1;

  t    = new Date();	// get current date
  year = t.getFullYear();	// get year of current
  mon  = t.getMonth() + 1;	// get month of current
  day  = t.getDate();	// get date of current
  if (MM == 2 && DD == 29){	// check leap year
    if (!(((YY % 4 == 0) && (YY % 100 != 0)) || (YY % 400 == 0))){
      return -1;
    }
  }
  age = year - YY;
  if ((MM > mon) || (MM == mon && day < DD)) age --;
  return age;
}

// Convert utc date (yyyy-mm-dd hh:mm:ss) to local date (dd/mm/yyyy hh:mm:ss)
function convertUTCtoLocal(sdate) {

	  if(typeof(sdate) != "string")
	    return "";
	  var ss, ss2, dt, els1, els2, dat;
	  ss = sdate;
	  dt = ss.split(" ");
	  if(dt.length == 2) {
	    els1 = dt[0].split("-");
		els2 = dt[1].split(":");
		if(els1.length == 3  &&  els2.length == 3) {
		  dat = new Date();
		  dat.setUTCFullYear(els1[0], els1[1] - 1, els1[2]);
		  dat.setUTCHours(els2[0], els2[1], els2[2]);
		  
		  ss = "";
		  ss2 = String(dat.getDate());
		  while(ss2.length < 2)  ss2 = "0"+ ss2;
		  ss += ss2 +"/";
			
		  ss2 = String(dat.getMonth() + 1);
		  while(ss2.length < 2)  ss2 = "0"+ ss2;
		  ss += ss2 +"/";
			
		  ss += dat.getFullYear() + " ";
			
		  ss2 = String(dat.getHours());
		  while(ss2.length < 2)  ss2 = "0"+ ss2;
		  ss += ss2 +":";
			
		  ss2 = String(dat.getMinutes());
		  while(ss2.length < 2)  ss2 = "0"+ ss2;
		  ss += ss2;
		}
	  }
	  return ss;
}