function getParameter(arg) {
	var _d = document.location.toString();
	if(_d.indexOf("?")>0) {
		var _e = _d.split("?")[1];
		var _parms = new Array();
		var _valus = new Array();
		// parameters must have a &!
		var _f = _e.split("&");
		for(var i=0;i<_f.length;i++) {	  
		  if(_f[i].split("=")[0] == arg) {
		  	var qval = _f[i].split("=")[1];
		  	var qval_idx = qval.indexOf("#");
		  	if (qval_idx > -1) {
		  		qval = qval.substring(0, qval_idx);
			}
			return unescape(qval.replace(/\+/," "));
		  }
		}
	}
    return "";
}

function getCookieVal (offset) {
   var endstr = document.cookie.indexOf (";", offset);
   if (endstr == -1)
      endstr = document.cookie.length;
   return unescape(document.cookie.substring(offset, endstr));
}

function GetCookie (name) {
   var arg = name + "=";
   var alen = arg.length;
   var clen = document.cookie.length;
   var i = 0;
   while (i < clen) {
      var j = i + alen;
      if (document.cookie.substring(i, j) == arg)
         return getCookieVal (j);
      i = document.cookie.indexOf(" ", i) + 1;
      if (i == 0) break; 
   }
   return null;
}

function SetCookie (name, value) {
   var argv = SetCookie.arguments;
   var argc = SetCookie.arguments.length;
   var path = (argc > 2) ? argv[2] : null;
   var expires = (argc > 3) ? argv[3] : null;
   var domain = (argc > 4) ? argv[4] : null;
   var secure = (argc > 5) ? argv[5] : false;
   document.cookie = name + "=" + escape (value) +
        ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
        ((path == null) ? "" : ("; path=" + path)) +
        ((domain == null) ? "" : ("; domain=" + domain)) +
        ((secure == true) ? "; secure" : "");
}

function DeleteCookie (name) {
   var exp = new Date();
   exp.setTime (exp.getTime() - 1000000000);  // This cookie is history (changed -1 to make it previous time)
   var cval = GetCookie (name);
   if(cval)
		document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}

//example
//function SetTheCookie()
//   {
//   if(document.forms[0].elements[0].value.length != 0)  
//      {
//      var expdate = new Date (); 
//      expdate.setTime(expdate.getTime() + (24 * 60 * 60 * 1000 * 365)); 
//     SetCookie('DemoName', document.forms[0].elements[0].value, expdate);  
//      alert('Cookie has been set to ' + document.forms[0].elements[0].value + '.');
//      document.forms[0].elements[0].value = " ";      
//      return false;
//      } 
//   else 
//      {
//      alert('You must sign-in first.');
//      return false;
//      }
//   }