Using JavaScript we can make a string bold by using bold() function. Here is an example.
var my_str="Hello world!";
document.write(my_str.bold());
The output of above string is Hello world!
Try this code below, there is an options to display in normal or bold letters by selecting radio buttons.
<html>
<head>
<title>(Type a title for your page here)</title>
<script type="text/javascript">
function makebold(type){
var my_str="Hello world!";
if(type=="bold"){
document.write(my_str.bold());
}else{
document.write(my_str);
}
}
</script>
</head>
