//Styleswitch. (thx to http://www.alistapart.com/stories/alternate)

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 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);
 
 
 function go(url) {
  onclick:popup=window.open(url,"86","location=no,menubar=no,resizable=no,scrollbars=yes,toolbar=no,status=yes,width=480,height=540");
 }


//Mouseover (tooltips). (thx to http://www.webmatze.de/webdesign/javascript/tooltips.htm)
function update(e) {
	var x = (document.all) ? window.event.x + document.body.scrollLeft : e.pageX;
	var y = (document.all) ? window.event.y + document.body.scrollTop  : e.pageY;
	if (wmtt != null) {
		wmtt.style.left = (x + 12) + "px";
		wmtt.style.top 	= (y + 12) + "px";
		}
}

function show(id) {
	wmtt = document.getElementById(id);
	wmtt.style.display = "block";
}

function hide() {
	wmtt.style.display = "none";
}

var wmtt = null;
document.onmousemove = update;