Jquery detect page refresh

function setCookie(c_name, value, exdays) {
var exdate = new Date();
exdate.setDate(exdate.getDate() + exdays);
var c_value = escape(value) + ((exdays == null) ? "" : "; expires=" + exdate.toUTCString());
document.cookie = c_name + "=" + c_value;
}

function getCookie(c_name) {
var i, x, y, ARRcookies = document.cookie.split(";");
for (i = 0; i < ARRcookies.length; i++) {
x = ARRcookies[i].substr(0, ARRcookies[i].indexOf("="));
y = ARRcookies[i].substr(ARRcookies[i].indexOf("=") + 1);
x = x.replace(/^\s+|\s+$/g, "");
if (x == c_name) {
return unescape(y);
}
}
}

function DeleteCookie(name) {
document.cookie = name + '=; expires=Thu, 01-Jan-70 00:00:01 GMT;';
}

$(window).load(function () {
//if IsRefresh cookie exists
var IsRefresh = getCookie("IsRefresh");
if (IsRefresh != null && IsRefresh != "") {
//cookie exists then you refreshed this page(F5, reload button or right click and reload)
//SOME CODE
DeleteCookie("IsRefresh");
}
else {
//cookie doesnt exists then you landed on this page
//SOME CODE
setCookie("IsRefresh", "true", 1);
}
})