How to get the value from Scriplet to JavaScript variable

In javascript function.....

function mywork()
{
<%String projectName="India" %>
var prjName='<%=projectName%>';

}

or
function mywork()
{
<%String projectName="India"%>
var pname;
document.getElementById( '<%=projectName%>' )=pname;
}

thus scriplet element is converted to javascript variable...