function watermark(tgt){
  var target = document.getElementById(tgt);

  if(target.value == ""){
    switch(target.name){
      case "code":
        target.setAttribute("class", "watermark");
        target.value = "CPT or ICD-9 Code";
        break;
      case "hospital":
        target.setAttribute("class", "watermark");
        target.value = "Hospital Name";
        break;
	  case "zip":
	    target.setAttribute("class", "watermark");
		target.value = "Zip Code";
		break;
      default:
        break;
    }
  }
  else {
    switch(target.name){
      case "code":
        if(target.value == "CPT or ICD-9 Code"){
          target.setAttribute("class", "");
          target.value = "";
        }
        break;
      case "hospital":
        if(target.value == "Hospital Name"){
          target.setAttribute("class", "");
          target.value = "";
        }
		break;
	  case "zip":
	    if(target.value == "Zip Code"){
		  target.setAttribute("class", "");
		  target.value = "";
		}
		break;
      default:
        break;
    }
  }
}

function showHideHint(){
  var hint = document.getElementById("hint");
  
  if(hint.style.display == "inline"){
    hint.style.display = "none";
  }
  else{
    hint.style.display = "inline";
  }
}