CSS Text Menu Help

[wholein1]

Hello,

I am basically trying to get mu Text CSS menu that when someone clicks a link it stays highlighted in the color that I choose. How can i add it too this?

.underlinemenu{
	font-weight: normal;
	width: 822px;
	margin-left:225px;
	font-family: "Comic Sans MS", cursive;
	font-size: 22px;
	color: #FFF;
	text-decoration: none;
	padding-bottom: 30px;
}

.underlinemenu ul{
	
	margin: 0;
	text-align: left; 
}

.underlinemenu ul li{
	display: inline;
}

.underlinemenu ul li a{
	color: #fff; 
	margin-right: 20px; 
	text-decoration: none;	
	padding-top: 6px;
	padding-right: 3px;
	padding-bottom: 4px;
	padding-left: 3px;border-bottom: 3px solid gray;
}

.underlinemenu ul li a:hover{
	font-family: "Comic Sans MS", cursive;
	font-size: 22px;
	color: #314381;
	text-decoration: none;

}
.underlinemenu ul li a:selected{
	font-family: "Comic Sans MS", cursive;
	font-size: 22px;
	color: #eeeee;
	text-decoration: none;
	background-color: #03F;
}

Thanks