if (getCookie("skin") != null){
	var nr = getCookie("skin");
    if(nr == "1"){
	    document.getElementById("style").href = "sga.css";
	}
	else if(nr == "2"){
	    document.getElementById("style").href = "sg1.css";
	}
}

function changeSkin(nr){

	var exp = new Date();               
	exp.setTime(exp.getTime() + (1000 * 60 * 60 * 24 * 31));
    setCookie("skin", nr, exp);
	
	if(nr == "1"){
	    document.getElementById("style").href = "sga.css";
	}
	else if(nr == "2"){
	    document.getElementById("style").href = "sg1.css";
	}
}



function setCookie(name, value, expires) {
    document.cookie = escape(name) + "=" + escape(value) + "; path=/" + ((expires == null) ? "" : "; expires=" + expires.toGMTString(  ));
} 

function getCookie(name) {
    var cookiename = name + "=";
    var dc = document.cookie;
    var begin, end;

    if (dc.length > 0) {
        begin = dc.indexOf(cookiename);
        if (begin != -1) {
            begin += cookiename.length;
            end = dc.indexOf(";", begin);
            if (end == -1) {
                end = dc.length;
            }
            return unescape(dc.substring(begin, end));
        } 
    }
    return null;
}