Leapyear.html

<!DOCTYPE html>
<html>
<head>
<title>LEAP YEAR</title>
<script type="text/javascript">

function findleapyear()
{

	var year=document.getElementById("y").value;
	if(year!="")
	{
		if( year%4 == 0)
		{
			if(year%100==0)
			{
				if(year%400==0)
				{
				document.write("this year is Leap year");
				}
				else
				{
				document.write("this year is not Leap year");
				}
			}
			else
			{
			document.write("this year is Leap year");
			}
		}	  
		else
		{
		document.write("this year is not Leap year");
		}
		
	}
	else
	{
	document.write("plese enter year");
	}	
		
		
}

 
</script>


</head>
<body>

ENTER YEAR:<input type="number" id="y" /></br>
<input type="button" value="check" onclick="findleapyear()"/>

</body>

</html>