var DOTS = "#define x_width 2\n#define x_height 1\n"+
           "static char x_bits[]={0x01}";

/* open new window in center of screen
 */

function NewWindow(mypage, myname, w, h, scroll) {

var winl = (screen.width - w) / 2;
var wint = ((screen.height - 50)- h) / 2;

winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+',noresize'
win = window.open(mypage, myname, winprops)

if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
}

/* styleswitcher
 */

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;
    }
  }
}

function switchMediaType(mediatype1,mediatype2) {
  var a, linkEl, linkMediaType, href;
  for(a=0; (linkEl = document.getElementsByTagName("link")[a]); a++) {
    href = linkEl.getAttribute("href");
	if(linkMediaType = linkEl.getAttribute("media")) {
	//	alert(href + " was " + linkMediaType);
		if (linkMediaType == mediatype1) {
			linkEl.setAttribute("media", mediatype2);
		} else if (linkMediaType == mediatype2) {
			linkEl.setAttribute("media", mediatype1);
		}
	//	alert(href + " is nu " + linkEl.getAttribute("media"));
    }
  }
}

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;
}

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();

//setActiveStyleSheet(title);

//popup for acquaintance newsletter
function winPopup(sURL, sWinName, iWidth, iHeight) {
	var f="scrollbars=yes,resizable=yes,width=" + iWidth + ",height=" + iHeight + ",top=" + ((screen.height-iHeight)/2) + ",left=" + ((screen.width-iWidth)/2);
	window.open(sURL,sWinName,f);
}