function ReadCookie(cookieName)
			 {
					          	 var theCookie=""+document.cookie;
			 					var ind=theCookie.indexOf(cookieName);
			 						if (ind==-1 || cookieName=="") return "";
			 								var ind1=theCookie.indexOf(';',ind);
			 						if (ind1==-1) ind1=theCookie.length;
			 							return unescape(theCookie.substring(ind+cookieName.length+1,ind1));

		     }
		      function setCookie(cookieName,cookieValue,nDays)
			  {
			 		          	var today = new Date();
			 						 var expire = new Date();
			 							if (nDays==null || nDays==0) nDays=1;
			 									expire.setTime(today.getTime() + 3600000*24*nDays);
			 										document.cookie = cookieName+"="+escape(cookieValue)
			 												 + ";expires="+expire.toGMTString();

		        }
		       function getQstringValue(keyName)
			  {
						    var query = window.location.search.substring(1);

							var pairs = query.split("&");
							for (var i=0 ; i<pairs.length ; i++)
							{
							   var pos = pairs[i].indexOf('=');
								if(pos >= 0)
								{
								     var argname = pairs[i].substring(0,pos);

								     if(argname == keyName)
								        return pairs[i].substring(pos+1);
								}//end if
							}//end for
							return -10;

		}