function show(fieldvalue) {
switch(fieldvalue)
{

case 0:
document.getElementById("dhol").style.display="none";
document.getElementById("harm").style.display="none";
document.getElementById("tabla").style.display="none";
document.getElementById("dholki").style.display="none";
document.getElementById("sitar").style.display="none";
document.getElementById("folk").style.display="none";
break;

case 1:
document.getElementById("dhol").style.display="block";
document.getElementById("harm").style.display="none";
document.getElementById("tabla").style.display="none";
document.getElementById("dholki").style.display="none";
document.getElementById("sitar").style.display="none";
document.getElementById("folk").style.display="none";
break;

case 2:
document.getElementById("dhol").style.display="none";
document.getElementById("harm").style.display="block";
document.getElementById("tabla").style.display="none";
document.getElementById("dholki").style.display="none";
document.getElementById("sitar").style.display="none";
document.getElementById("folk").style.display="none";
break;

case 3:
document.getElementById("dhol").style.display="none";
document.getElementById("harm").style.display="none";
document.getElementById("tabla").style.display="block";
document.getElementById("dholki").style.display="none";
document.getElementById("sitar").style.display="none";
document.getElementById("folk").style.display="none";
break;

case 4:
document.getElementById("dhol").style.display="none";
document.getElementById("harm").style.display="none";
document.getElementById("tabla").style.display="none";
document.getElementById("dholki").style.display="block";
document.getElementById("sitar").style.display="none";
document.getElementById("folk").style.display="none";
break;

case 5:
document.getElementById("dhol").style.display="none";
document.getElementById("harm").style.display="none";
document.getElementById("tabla").style.display="none";
document.getElementById("dholki").style.display="none";
document.getElementById("sitar").style.display="block";
document.getElementById("folk").style.display="none";
break;

case 6:
document.getElementById("dhol").style.display="none";
document.getElementById("harm").style.display="none";
document.getElementById("tabla").style.display="none";
document.getElementById("dholki").style.display="none";
document.getElementById("sitar").style.display="none";
document.getElementById("folk").style.display="block";
break;

}
}