function changeToDiv(w) {
 dgdivs = Array("danceologist", "rookie", "intense", "extreme", "support");
 for (dgi=0; dgi<dgdivs.length; dgi++) {
  if (dgdivs[dgi] != w) {
   dgis = dgdivs[dgi];
   document.getElementById(dgis).style.display = "none";
  }
 }
 document.getElementById(w).style.display = "block";
}

function forgot() {
 document.location.href = 'index.php?p=dg_reminder';
}

function main() {
 document.location.href = 'index.php?p=dg_main';
}

function changeFile() {
 var ufn = document.saveform.dg_attachment.value.toLowerCase();
 var checkedf = "none";
 if ( ufn.lastIndexOf(".pdf") != -1 ) { checkedf = "document"; }
 if ( ufn.lastIndexOf(".jpg") != -1 ) { checkedf = "image"; }
 if ( ufn.lastIndexOf(".png") != -1 ) { checkedf = "image"; }
 if ( ufn.lastIndexOf(".avi") != -1 ) { checkedf = "video"; }
 if ( ufn.lastIndexOf(".mov") != -1 ) { checkedf = "video"; }
 if ( ufn.lastIndexOf(".mpg") != -1 ) { checkedf = "video"; }
 if ( ufn.lastIndexOf(".wmv") != -1 ) { checkedf = "video"; }
 
 for ( type = 0; type < document.saveform.dg_type.length; type++ ) {
  if ( document.saveform.dg_type[type].value == checkedf ) {
   document.saveform.dg_type[type].checked = true;
  }
 }
}