function GetLocalTimeOffset() 
{
	var rightNow = new Date();
	var date1 = new Date(rightNow.getFullYear(), 0, 1, 0, 0, 0, 0);
	var temp = date1.toUTCString();
	var date2 = new Date(temp.substring(0, temp.lastIndexOf(' ')-1));
	var hoursDiffStdTime = (date1 - date2) / (1000 * 60 * 60);
	createCookie('hoursDiffStdTime', hoursDiffStdTime, 365);
}
function createCookie(name,value,days) 
{
	if (days && days > 0) 
	{
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = '; expires='+date.toGMTString();
	}
	else var expires = '';
	document.cookie = name+'='+value+expires+'; path=/';
}
GetLocalTimeOffset();