Need help with this code with buttons that are supposed to open iframes

the code i s

my family
</head>
	
<body style="background-color:yellow">
	<script language=javascript>
		function MyFirstFunction(obj)
		{
			var source = document.getElementsByName("advay")
			if (source == advay[0]);
				var url = program.html
			if (source == abhay[1]);
				var url = abhay.html
			if (source == anil[2]);
				var url = daddy.html
			if (source == prameela[3]);
				var url = mommy.html
		
		}
		
		function changecolor(obj)
		{
			//var obj = document.getElementsByName("advay");
			//alert(obj.name);
			if(obj.style.color=="blue")
				obj.style.color="black"
			else
				obj.style.color="blue"
		
		}
	</script>
	<table border="1" bordercolor:blue>
		<tr>
			<td>
				<table>
				<tr style="color:purple"><td colspan="4">MY FAMILY</td></tr>
				<tr>
					<td><input type=button name="advay" value="Advay Gopalakrishnan"onclick="MyFirstFunction(this) " 										onmouseover="changecolor(this)" onmouseout="changecolor(this)"></td>
					<td><input type=button name="abhay" value="Abhay Gopalakrishnan"onclick="MyFirstFunction(this) " 										onmouseover="changecolor(this)" onmouseout="changecolor(this)"></td>
					<td><input type=button name="anil" value="Anil Gopalakrishnan"onclick="MyFirstFunction(this) " 										onmouseover="changecolor(this)" onmouseout="changecolor(this)"></td>
					<td><input type=button name="prameela" value="Prameela Murlidar"onclick="MyFirstFunction(this) " 										onmouseover="changecolor(this)" onmouseout="changecolor(this)"></td>
				</tr>
			</td>
		</tr>
		<tr>
			<td colspan="4"><iframe src=url ></td>
		</tr>
	</table>
	</table>
		
</body>