var cookie_name = "cookie1_pr=";

function _update_cart(id, value, backurl, attachurl) {

    var c1, cvalue, i2;
    var name = "p"+id+"%3D";
    var c = document.cookie;
    var i = c.indexOf(cookie_name);
    if (i == -1) {
        c1 = "";
    } else {
        i += cookie_name.length;         
        i2 = c.indexOf(";", i); 
        if (i2 == -1) c1 = c.substring(i, c.length);
        else c1 = c.substring(i, i2);
    } 

    if (c1.length) {
        i = c1.indexOf(name);
        if (i == -1) cvalue = c1+"%26"+name+value;
        else {
            i2 = c1.indexOf("%26", i);        
            cvalue = c1.substring(0, i+name.length) + value;
            if (i2 != -1) cvalue += c1.substring(i2, c1.length);
        }        
    } else {
       cvalue = name+value;        
    }

    document.cookie = cookie_name + cvalue;
	if(typeof(backurl)=='undefined' || backurl=='') {
		if(typeof(attachurl)!='undefined' && attachurl!='') {	
			document.location.href = "?l=lat&s=cart&atturl=" + attachurl;
		} else {
			document.location.href = "?l=lat&s=cart";
		}
	} else {
		document.location.href = backurl;
	}
    //location.reload();
}

function _clear_cart(noref) {

    document.cookie = cookie_name;

    if(!noref) location.reload(); 
}