<html>
<body>
<p id="demo">Click the button to call the new myMet() method, and display this month's name, using the new myProp property.</p>
<button onclick="myFunction()">Try it</button>
<script>
Date.prototype.myMet=function()
{
if (this.getMonth()==0){this.myProp="January"};
if (this.getMonth()==1){this.myProp="February"};
if (this.getMonth()==2){this.myProp="March"};
if (this.getMonth()==3){this.myProp="April"};
if (this.getMonth()==4){this.myProp="May"};
if (this.getMonth()==5){this.myProp="June"};
if (this.getMonth()==6){this.myProp="July"};
if (this.getMonth()==7){this.myProp="August"};
if (this.getMonth()==8){this.myProp="Spetember"};
if (this.getMonth()==9){this.myProp="October"};
if (this.getMonth()==10){this.myProp="November"};
if (this.getMonth()==11){this.myProp="December"};
}
function myFunction()
{
var d = new Date();
d.myMet();
var x=document.getElementById("demo");
x.innerHTML=d.myProp;
}
</script>
</body>
</html>