var style_cookie_name = "style" ;
var style_cookie_duration = 300 ;
var playlist_cookie_diration = 1000;

if (Array.prototype.has==null) Array.prototype.has=function(it){
	for (var i = 0; i < this.length; i++)
	{
		if (this[i] == it) 
		{
			return true;
		}
	}
	return false;
}

function switch_style ( css_title )
{
  var i, link_tag ;
  for (i = 0, link_tag = document.getElementsByTagName("link") ;
    i < link_tag.length ; i++ ) {
    if ((link_tag[i].rel.indexOf( "stylesheet" ) != -1) &&
      link_tag[i].title) {
      link_tag[i].disabled = true ;
      if (link_tag[i].title == css_title) {
        link_tag[i].disabled = false ;
      }
    }
    set_cookie( style_cookie_name, css_title,
      style_cookie_duration );
  }
}
function set_style_from_cookie()
{
  var css_title = get_cookie( style_cookie_name );
  if (css_title.length) {
    switch_style( css_title );
  }
}
function set_cookie ( cookie_name, cookie_value,
    lifespan_in_days, valid_domain )
{
    var domain_string = valid_domain ?
                       ("; domain=" + valid_domain) : '' ;
    document.cookie = cookie_name +
                       "=" + encodeURIComponent( cookie_value ) +
                       "; max-age=" + 60 * 60 *
                       24 * lifespan_in_days +
                       "; path=/" + domain_string ;
}
function get_cookie ( cookie_name )
{
    var cookie_string = document.cookie ;
    if (cookie_string.length != 0) {
        var cookie_value = cookie_string.match (
                        '(^|;)[\s]*' +
                        cookie_name +
                        '=([^;]*)' );
        return decodeURIComponent ( cookie_value[2] ) ;
    }
    return '' ;
}

function AssignPosition(d) {
	if(self.pageYOffset) {
		rX = self.pageXOffset;
		rY = self.pageYOffset;
	}
	else if(document.documentElement && document.documentElement.scrollTop) {
		rX = document.documentElement.scrollLeft;
		rY = document.documentElement.scrollTop;
	}
	else if(document.body) {
		rX = document.body.scrollLeft;
		rY = document.body.scrollTop;
	}
	if(document.all) {
		cX += rX; 
		cY += rY;
	}
	d.style.left = (cX+10) + "px";
	d.style.top = (cY+10) + "px";
}
function ShowContent(d) {
	if(d.length < 1) { return; }
	var dd = document.getElementById(d);
	AssignPosition(dd);
	dd.style.display = "block";
}

function UpdateCursorPosition(e){ 
	cX = e.pageX; 
	cY = e.pageY;	
}
function UpdateCursorPositionDocAll(e){ 
	cX = event.clientX;
	cY = event.clientY;
}