// JavaScript Document

/* This script and many more are available free online at
The JavaScript Source!! http://javascript.internet.com
Created by: Michael Leigeber | http://www.leigeber.com/ */

// global variables //
var TIMER = 5;
var SPEED = 10;
var WRAPPER = 'container';
var looper = 0;

var userChoiceElement = null;
// calculate the current window width //
function pageWidth() {
  return window.innerWidth != null ? window.innerWidth : document.documentElement && document.documentElement.clientWidth ? document.documentElement.clientWidth : document.body != null ? document.body.clientWidth : null;
}

// calculate the current window height //
function pageHeight() {
  return window.innerHeight != null? window.innerHeight : document.documentElement && document.documentElement.clientHeight ? document.documentElement.clientHeight : document.body != null? document.body.clientHeight : null;
}

// calculate the current window vertical offset //
function topPosition() {
  return typeof window.pageYOffset != 'undefined' ? window.pageYOffset : document.documentElement && document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop ? document.body.scrollTop : 0;
}

// calculate the position starting at the left of the window //
function leftPosition() {
  return typeof window.pageXOffset != 'undefined' ? window.pageXOffset : document.documentElement && document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft ? document.body.scrollLeft : 0;
}

// build/show the dialog box, populate the data and call the fadeDialog function //
function showDialog(title,message,type,autohide, choiceFunction) {
  if(!type) {
    type = 'error';
  }
  
  var dialog;
  var dialogheader;
  var dialogclose;
  var dialogtitle;
  var dialogcontent;
  var dialogtext;
  var dialogmask;
  var dialogButtonArea;
  var dialogButton;
  if(!document.getElementById('dialog')) {
    dialog = document.createElement('div');
    dialog.id = 'dialog';
    dialogheader = document.createElement('div');
    dialogheader.id = 'dialog-header';
    dialogtitle = document.createElement('div');
    dialogtitle.id = 'dialog-title';
    dialogclose = document.createElement('div');
    dialogclose.id = 'dialog-close'
    dialogcontent = document.createElement('div');
    dialogcontent.id = 'dialog-content';
    dialogtext = document.createElement('div');
    dialogtext.id = 'dialog-text';
    dialogmask = document.createElement('div');
    dialogmask.id = 'dialog-mask';
    dialogButtonArea = document.createElement('div');
    dialogButtonArea.id = "dialogButtonArea";
    dialogButton = document.createElement('div');
    dialogButton.id = "dialogButton";
    dialogButton.innerHTML = "OK";
    if (choiceFunction) {
      //dialogButton.setAttribute("onclick","hideDialog(); " + choiceFunction + "(1);");
      dialogButton.setAttribute("onclick",choiceFunction + "(1)");
      dialogButton.onclick = function(){choiceFunction(1)};
      //dialogButton.onclick = hideDialog;
    }
    else {
      dialogButton.setAttribute("onclick","hideDialog()");
      dialogButton.onclick = hideDialog;
    }
    document.body.appendChild(dialogmask);
    document.body.appendChild(dialog);
    dialog.appendChild(dialogheader);
    dialogheader.appendChild(dialogtitle);
    dialogheader.appendChild(dialogclose);
    dialog.appendChild(dialogcontent);;
    dialogclose.setAttribute("onclick","hideDialog()");
    dialogclose.onclick = hideDialog;
    dialogcontent.appendChild(dialogtext);
    dialogcontent.appendChild(dialogButtonArea);
    dialogButtonArea.appendChild(dialogButton);
    if (type == "prompt") {
      dialogButtonCancel = document.createElement('div');
      dialogButtonCancel.id = "dialogButtonCancel";
      dialogButtonCancel.innerHTML = "Cancel";
      if (choiceFunction) {
        dialogButtonCancel.setAttribute("onclick",choiceFunction + "(0)");
        dialogButtonCancel.onclick = function(){choiceFunction(0)};
      }
      else {
        dialogButtonCancel.setAttribute("onclick","hideDialog()");
        dialogButtonCancel.onclick = hideDialog;
      }
      dialogButtonArea.appendChild(dialogButtonCancel);
    }
    
  } else {
    dialog = document.getElementById('dialog');
    dialogheader = document.getElementById('dialog-header');
    dialogtitle = document.getElementById('dialog-title');
    dialogclose = document.getElementById('dialog-close');
    dialogcontent = document.getElementById('dialog-content');
    dialogtext = document.getElementById('dialog-text');
    dialogmask = document.getElementById('dialog-mask');
    dialogmask.style.visibility = "visible";
    dialog.style.visibility = "visible";
  }
  
  dialog.style.opacity = .00;
  dialog.style.filter = 'alpha(opacity=0)';
  dialog.alpha = 0;
  var width = pageWidth();
  var height = pageHeight();
  var left = leftPosition();
  var top = topPosition();
  var dialogwidth = dialog.offsetWidth;
  var dialogheight = dialog.offsetHeight;
  var topposition = top + (height / 3) - (dialogheight / 2);
  var leftposition = left + (width / 2) - (dialogwidth / 2);
  dialog.style.top = topposition + "px";
  dialog.style.left = leftposition + "px";
  dialogheader.className = type + "header";
  dialogtitle.innerHTML = title;
  dialogcontent.className = type;
  dialogtext.innerHTML = message;
  
  var content = document.getElementById(WRAPPER);
  dialogmask.style.height = content.offsetHeight + 'px';
  dialog.timer = setInterval("fadeDialog(1,'dialog')", TIMER);
  if(autohide) {
    dialogclose.style.visibility = "hidden";
    window.setTimeout("hideDialog()", (autohide * 1000));
  } else {
    dialogclose.style.visibility = "visible";
  }
  
}

// hide the dialog box //
function hideDialog() {
  var dialog = document.getElementById('dialog');
  clearInterval(dialog.timer);
  dialog.timer = setInterval("fadeDialog(0,'dialog')", TIMER);
}

// fade-in the dialog box //
function fadeDialog(flag, dialogId) {
  if(flag == null) {
    flag = 1;
  }

  var dialog = document.getElementById(dialogId);
  var value;
  if(flag == 1) {
    value = dialog.alpha + SPEED;
  } else {
    value = dialog.alpha - SPEED;
  }
  dialog.alpha = value;
  dialog.style.opacity = (value / 100);
  dialog.style.filter = 'alpha(opacity=' + value + ')';
  if(value >= 99) {
    clearInterval(dialog.timer);
    dialog.timer = null;
  } else if(value <= 1) {
    dialog.style.visibility = "hidden";
    document.getElementById('dialog-mask').style.visibility = "hidden";
    clearInterval(dialog.timer);
  }
}

function showDivDialog(dialogContent) {

  var dialogmask;
  var dialog;
  // if (dialogContent != div, or something like that)
  if(!document.getElementById('dialog-mask')) {
    dialogmask = document.createElement('div');
    dialogmask.id = 'dialog-mask';
    dialog = document.createElement('div');
    dialog.id = 'dialog-simple';
    //dialog.id = 'dialog';
    document.body.appendChild(dialogmask);
    document.body.appendChild(dialog);
  }
  else {
    dialogmask = document.getElementById('dialog-mask');
    dialog = document.getElementById('dialog-simple');
    //dialog = document.getElementById('dialog');
    while (dialog.firstChild) {
      dialog.removeChild(dialog.firstChild);
    }
    dialogmask.style.visibility = "visible";
    dialog.style.visibility = "visible";
  }
  dialog.style.opacity = .00;
  dialog.style.filter = 'alpha(opacity=0)';
  dialog.alpha = 0;
  dialogContent.setAttribute("onclick","hideDivDialog()");
  dialogContent.style.top = 0;
  dialogContent.style.left = 0;
  dialog.appendChild(dialogContent);
  
  var width = pageWidth();
  var height = pageHeight();
  var left = leftPosition();
  var top = topPosition();
  var dialogwidth = dialog.offsetWidth;
  var dialogheight = dialog.offsetHeight;
  var topposition = top + (height / 3) - (dialogheight / 2);
  var leftposition = left + (width / 2) - (dialogwidth / 2);
  dialog.style.top = topposition + "px";
  dialog.style.left = leftposition + "px";
  
  //dialog.style.top = dialogContent.style.top;//dialogContent.offsetTop + "px";
  //dialog.style.left = dialogContent.style.left; //dialogContent.offsetLeft + "px";
  
  dialog.timer = setInterval("fadeDialog(1,'dialog-simple')", TIMER);
  //dialog.timer = setInterval("fadeDialog(1,'dialog')", TIMER);
}

function hideDivDialog() {
  var dialog = document.getElementById('dialog-simple');
  clearInterval(dialog.timer);
  dialog.timer = setInterval("fadeDialog(0,'dialog-simple')", TIMER);
}