On button click - how to bring up browsers emailing box using javascript.

INPUT TYPE="button" VALUE="Send Email." onClick = "parent.location= 'mailto:mymailid@gmail.com'"

Show Timer on status bar using Javascript

function showtime ()
{

var now = new Date();
var hours = now.getHours();
var minutes = now.getMinutes();
var seconds = now.getSeconds()
var timeValue = "" + ((hours >12) ? hours -12 :hours)
timeValue += ((minutes < 10) ? ":0" : ":") + minutes
timeValue += ((seconds < 10) ? ":0" : ":") + seconds
timeValue += (hours >= 12) ? " P.M." : " A.M."

window.status = timeValue;

}

Call this function on load of the form.

Check the browser type using javascript.

if(navigator.appName=="Netscape")
{
alert("Browser is Netscape Navigator.");
}
else if (navigator.appName == "Microsoft Internet Explorer")
{
alert("Browser is Microsoft Internet Explorer.");
}
else
{
alert("Neither Netscape Navigator nor Internet Explorer.");
}

Year is a leap year or not.

Suppose you want to know if 2009 is a leapyear or not.
Use:
bool Result = DateTime.IsLeapYear(2009);

Get the IP address based on the host name

using System.Net;

string HostName = Dns.GetHostName(); //for local machine
public string GetIPAddress(string HostName)
{
IPHostEntry ipHostEntry = Dns.GetHostByName(HostName);
IPAddress [] addres = ipHostEntry.AddressList;
string IPAddress = addres[0].ToString();
return IPAddress;
}

Interface members can be Properties.

Syntax:
interface ICalculate
{

int Height
{
get;
set;
}

int Width
{
get;
set;
}

float Area();

}

Set Control Focus using Javascript code.

body onload="document.forms[0]['TextBox1'].focus();"