function changesong()
{
document.search_form.search_input.value= "Search For Videos";
document.search_form.type.value= "video";
document.getElementById('song').style.display = "none";
document.getElementById('video').style.display = "inline";
document.getElementById('lyrics').style.display = "inline";

}
function change_song()
{
document.search_form.search_input.value= "Search For Songs";
document.search_form.type.value= "mp3";
document.getElementById('song').style.display = "inline";
document.getElementById('video').style.display = "none";
document.getElementById('lyrics').style.display = "none";
}