function seepic (page) {	
	w = 550;
	h = screen.height-110;
	if (h > 900) h = 700; 
	else if (h > 550) h = 550; 
	var winl = (screen.width - w) / 2;
	var wint = (screen.height - 115 - h) / 2;
	seepic = window.open(page,'seepic',"toolbar=no,width="+w+",height="+h+",top="+wint+",top="+wint+",left="+winl+",status=yes,scrollbars=yes,resizable=yes,menubar=no");
	seepic.focus();
	return false;
} // end function seepic

function changeStyle(title) {
	var lnks = document.getElementsByTagName('link');
	for (var i = lnks.length - 1; i >= 0; i--) {
		if (lnks[i].getAttribute('rel').indexOf('style')> -1 && lnks[i].getAttribute('title')) {
			lnks[i].disabled = true;
			if (lnks[i].getAttribute('title') == title) lnks[i].disabled = false;
		}
	}
	setActiveStyleSheet(title);
}

function setActiveStyleSheet(title) {
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
      a.disabled = true;
      if(a.getAttribute("title") == title) a.disabled = false;
    }
  }
  accesslinks(title);
}

function getActiveStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
  }
  return null;
}

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title")
       ) return a.getAttribute("title");
  }
  return null;
}

function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(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;
}

function accesslinks(title) {
	if (title == 'access') document.getElementById('accessmode').innerHTML = 'accessibility option:<br /><a href="javascript:changeStyle(\'mainss\');">view in full graphics mode</a>';	
	else document.getElementById('accessmode').innerHTML = 'accessibility option:<br /><a href="javascript:changeStyle(\'access\');">view in low graphics mode</a>';
} // end if

function canchangestyle () {
	if (( document.styleSheets || ( window.opera && document.childNodes ) || ( window.ScriptEngine && ScriptEngine().indexOf('InScript') + 1 && document.createElement ) ) && !navigator.__ice_version ) return true;
	else false;	
} // end function

window.onload = function(e) {
  var cookie = readCookie("style");
  var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);
}

window.onunload = function(e) {
  var title = getActiveStyleSheet();
  createCookie("style", title, 365);
}

var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();


function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}