var Delta;
var ClientTime;
var ServerTime;
var lblTime
$(function() {
    lblTime = document.getElementById("currentTime");
    if (lblTime != null) {
        ServerTime = new Date(lblTime.innerHTML);
        ClientTime = new Date();
        Delta = Math.ceil(ServerTime - ClientTime);
        addSecond();       
    }
})
function addSecond() {
    ClientTime = new Date();
    ClientTime.setMilliseconds(Delta);
    var text = [];
    text.push(GetNumber(ClientTime.getHours()));
    text.push(":" + GetNumber(ClientTime.getMinutes()));
    text.push(":" + GetNumber(ClientTime.getSeconds()));
    lblTime.innerHTML = text.join('');
    lblTime.style.display = '';
    setTimeout('addSecond()', 1000);
}
function GetNumber(number) {
    return parseInt(number) > 9 ? number : '0' + number;
}