this.toggleOnOff=1;

function toggle(styleName){

	if (this.toggleOnOff) { 
		setActiveStyleSheet(styleName); 
		this.toggleOnOff=0;
	}
		
	else if (!this.toggleOnOff) { 
		setActiveStyleSheet(); this.toggleOnOff=1; }
	}


function setActiveStyleSheet(title) {
  var i, a, main;
  for (i=0; (a = document.getElementsByTagName("link")[i]); i++) {
	if (a.getAttribute("rel") &&
		a.getAttribute("rel").indexOf("style") != -1 &&
		a.getAttribute("title")) {
	  	a.disabled = true;
	
	if(a.getAttribute("title") == title) a.disabled = false;
	
	}
  }
  
  // no set a cookie
  document.cookie = "style=" + title;
}

function getActiveStyleSheet() {
	var mycookies = document.cookie;
	var pos = mycookies.indexOf('style=');
	if (pos != -1) {
		var start = pos+6;
		var end = mycookies.indexOf(';', start);
		if (end == -1) end = mycookies.length;
		var value = mycookies.substring(start, end);
		setActiveStyleSheet(value);
	}
}

window.onload = getActiveStyleSheet;