function submit_onmouseover(btn) {
  btn.style.cursor       = "pointer";
}

function submit_onmouseout(btn) {
  btn.style.cursor       = "default";
  btn.style.borderTop    = "solid 3px #E0F0EF";
  btn.style.borderRight  = "solid 2px #6FB7B0";
  btn.style.borderBottom = "solid 2px #6FB7B0";
  btn.style.borderLeft   = "solid 3px #E0F0EF";
}

function submit_onmousedown(btn) {
  btn.style.borderTop    = "solid 3px #6FB7B0";
  btn.style.borderRight  = "solid 2px #E0F0EF";
  btn.style.borderBottom = "solid 2px #E0F0EF";
  btn.style.borderLeft   = "solid 3px #6FB7B0";
}

function submit_onmouseup(btn) {
  btn.style.borderTop    = "solid 3px #E0F0EF";
  btn.style.borderRight  = "solid 2px #6FB7B0";
  btn.style.borderBottom = "solid 2px #6FB7B0";
  btn.style.borderLeft   = "solid 3px #E0F0EF";
}