function SetCookie (name, value, exp, path) {
	var argv = SetCookie.arguments;
	var argc = SetCookie.arguments.length;
	var expires = new Date();	
	var date = new Date();       
	date.setTime(date.getTime()+1000*60*60*24*365);  				
	expires = (argc > 2) ? argv[2] : date;
	var path = (argc > 3) ? argv[3] : "/";
	var domain = (argc > 4) ? argv[4] : null;
	var secure = (argc > 5) ? argv[5] : false;	
	document.cookie = name + "=" + escape (value) +
	((expires == null) ? "" : ("; expires=" + expires.toUTCString())) +
	((path == null) ? "" : ("; path=" + path)) +
	((domain == null) ? "" : ("; domain=" + domain)) +
	((secure == true) ? "; secure" : "");  
}

function GetCookie(sName){ 
	var aCookie = document.cookie.split("; ");
	for (var i=0; i < aCookie.length; i++){   
	var aCrumb = aCookie[i].split("=");
	if (sName == aCrumb[0]) 
		return unescape(aCrumb[1]);
	}  
	return null;
}

function CheckCookie() {
	c=(navigator.cookieEnabled?1:0);
	if (c==0) {	
		alert ("Cookies must be enable."); 
		return false;
	}
	else {
		return true;
	}
}

function ToCookie(name,id) { 		
	record=GetCookie(name);   
	if (record) {     
		pattern=","+id+",";
		s=record.indexOf(pattern);
		if (s==-1) {
			record_new=record+id+",";
			SetCookie (name, record_new); 
		}                                    
	}
	else {       
		record=","+id+",";
		SetCookie (name, record);                                   
	}              
}                

function DeleteFromCookie(name,id) { 		
	record=GetCookie(name);   
	if (record) {     
		pattern=","+id+",";
		s=record.indexOf(pattern);
		if (s!=-1) {			
			record_new=record.replace(pattern, ",");
			if (record_new!=",") {
				SetCookie (name, record_new); 
			}
			else {
				date = new Date();       
				date.setTime(date.getTime()-1);  
				SetCookie (name,"",date); 
			}
		}                                    
	}          
}