Function Name Opens In Address Bar Istead Of URL

I am using the below code to assign the javascript function on select on radio button. This may vary based on radio button selection. For some radio button selection the button will be disabled.

if(yes)
{
document.getElementById("Name").href = "javaScript:functionA()";
document.getElementById("Name").onclick = "javaScript:functionA()";
}else
{
document.getElementById("Name").href = "#";
}

This is the code i am using to activate the button or disable the button. For some causes i am getting "javaScript:functionA()" in the address bar instead of calling that java script method. So my new window is not showing me the correct result.