function Get_Cookie(name){
  var cname = name + "=";               
  var dc = document.cookie;             
  if (dc.length > 0) {              
    begin = dc.indexOf(cname);       
    if (begin != -1) {           
      begin += cname.length;       
      end = dc.indexOf(";", begin);
      if (end == -1) end = dc.length;
        return unescape(dc.substring(begin, end));
    } 
  }
  return null;
}


function Set_Cookie(name, value, path, domain, secure) {
	var today	= new Date();
	var expire	= new Date();
	expire.setTime (today.getTime() + 1800000);
	document.cookie = name + "=" + escape(value) +
	((path == null) ? "; path=/" : "; path=" + path) +
	((domain == null) ? "" : "; domain=" + domain) +
   	"; expires=" + expire.toGMTString();
}



function Delete_Cookie (name,path,domain) {
	var exp  = new Date();
	exp.setTime (exp.getTime() - 3600);  
	if (Get_Cookie(name)) {
		document.cookie = name + "=" +
    	((path == null) ? "; path=/" : "; path=" + path) +
    	((domain == null) ? "" : "; domain=" + domain) +
    	"; expires=" + exp.toGMTString();
	 }
}