function ColourCheck() {
  sitecolour = readCookie('DZcolour');
switch(sitecolour) {
	case '1': changeSheets(1);break;
	case '2': changeSheets(2);break;
	case '3': changeSheets(3);break;
	case '4': changeSheets(4);break;
	case '5': changeSheets(5);break;
}

}
var doAlerts=false;
function changeSheets(whichSheet){
  if(document.styleSheets){
	whichSheet=whichSheet-1;
    var c = document.styleSheets.length;
    if (doAlerts) alert('Change to Style '+(whichSheet+1));
    for(var i=0;i<c;i++){
      if(i!=whichSheet){
        document.styleSheets[i].disabled=true;
      }else{
        document.styleSheets[i].disabled=false;
      }
    }
  }
}

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 var 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;
}