veBack = function() {
  this.createCookie = function(name,value) {
    var expires = "";
    document.cookie = name+"="+value+expires+"; path=/";
  }
  
  this.readCookie = function(name) {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for(var i=0;i < ca.length;i++) {
      var c = ca[i];
      while (c.charAt(0)==' ') c = c.substring(1,c.length);
      if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
    }
    return null;
  }

  this.writeColorCss = function()  {
    var c = this.getColor();
    var image = this.getImage();
    
    if (c || image) {
      document.write('<style type="text/css">');
      if (c) document.write('html {background-color:'+c+' !important;}');
      if (image)  document.write('html {background-image:url('+image+') !important;}');
      document.write('</style>');
    }
  }
  
  this.setColor = function(value) {
    this.createCookie('cms.ve.back.color', value);
    var els = document.getElementsByTagName('html');
    els[0].setAttribute('style', 'background-color:'+value+' !important');
  }

  this.getColor = function() {  
    return this.readCookie('cms.ve.back.color');
  }
  
  this.setImage = function(value) {
    this.createCookie('cms.ve.back.image', value);
    var els = document.getElementsByTagName('html');
    els[0].removeA
    if (value) {
      els[0].setAttribute('style', 'background-image:url('+value+') !important');
    }
  }

  this.getImage = function() {  
    return this.readCookie('cms.ve.back.image');
  }
  
  this.setBack = function(color, image) {
    this.createCookie('cms.ve.back.color', color);
    this.createCookie('cms.ve.back.image', image);
    var els = document.getElementsByTagName('html');
    
    els[0].setAttribute('style', '');
    var style = '';
    
    if (color) {
      style += 'background-color:'+color+' !important;';
    } else {
      style += 'background-color:transparent !important;';
    }
    if (image) {
      style += 'background-image:url('+image+') !important;';
    } else {
      style += 'background-image:none !important;';
    }
    
    els[0].setAttribute('style', style);
  }
  
  this.writeColorCss();
}

if (typeof E == 'undefined') E = {};
E.veBack = new veBack();