function validate(form,type){
  if(type == 'register'){	
	  var nis = form.nis.value;
	  var nama = form.nama.value;
	  var tanggal = form.tanggal.value;
	  var alamat = form.alamat.value;
	  var tlp = form.tlp.value;
	  var hp = form.hp.value;
	  var email = form.email.value;
	  var pekerjaan = form.pekerjaan.value;
	  var captcha = form.captcha.value;
	  var numberRegex = new RegExp(/^[0-9]+/);
	  var nameRegex = new RegExp(/^[a-zA-Z]+(([\'\,\.\- ][a-zA-Z ])?[a-zA-Z]*)*$/);
	  var emailRegex = new RegExp(/^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$/);
	  if(nis == ""){
		inlineMsg('nis','Anda harus mengisi NIS',2);
		return false;
	  }
	  if(!nis.match(numberRegex)){
		inlineMsg('nis','Anda salah mengisi NIS.',2);
		return false;
	  }
	  if(nama == ""){
		inlineMsg('nama','Anda harus mengisi nama anda.',2);
		return false;
	  }
	  if(tanggal == ""){
		inlineMsg('tanggal','Anda harus mengisi tanggal lahir anda.',2);
		return false;
	  }	  
	  if(alamat == ""){
		inlineMsg('alamat','Anda harus mengisi alamat anda.',2);
		return false;
	  }
	  if(!tlp.match(numberRegex)){
		if(tlp == ""){}
		else{
			inlineMsg('tlp','Anda salah mengisi No. Tlp..',2);
			return false;
		}
	  }
	  if(!hp.match(numberRegex)){
		if(hp == ""){}
		else{  
			inlineMsg('hp','Anda salah mengisi No. Hp..',2);
			return false;
		}
	  }
	  if(!email.match(emailRegex)){
		if(email == ""){}
		else{  
			inlineMsg('email','Anda salah memasukkan alamat email.',2);
			return false;
		}
	  }
	  if(captcha == ""){
		inlineMsg('captcha','Anda harus mengisi kode keamanan',2);
		return false;
	  }	  
	  return true;
  }


  if(type == 'saran'){	
	  var nama = form.nama.value;
	  var email = form.email.value;
	  var saran = form.saran.value;
	  var captcha = form.captcha.value;
	  var emailRegex = new RegExp(/^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$/);
	  if(nama == ""){
		inlineMsg('nama','Anda harus mengisi nama anda.',2);
		return false;
	  }
	  if(!email.match(emailRegex)){
		if(email == ""){}
		else{  
			inlineMsg('email','Anda salah memasukkan alamat email.',2);
			return false;
		}
	  }
	  if(saran == ""){
		inlineMsg('saran','Anda harus mengisi kritik dan saran.',2);
		return false;
	  }
	  if(captcha == ""){
		inlineMsg('captcha','Anda harus mengisi kode keamanan',2);
		return false;
	  }	  
	  return true;
  }


  if(type == 'contactus'){	
	  var nama = form.nama.value;
	  var email = form.email.value;
	  var komentar = form.komentar.value;
	  var captcha = form.captcha.value;
	  var emailRegex = new RegExp(/^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$/);
	  if(nama == ""){
		inlineMsg('nama','Anda harus mengisi nama anda.',2);
		return false;
	  }
	  if(email == ""){
		inlineMsg('email','Anda harus mengisi email anda.',2);
		return false;
	  }	  
	  if(!email.match(emailRegex)){
		inlineMsg('email','Anda salah memasukkan alamat email.',2);
		return false;
	  }
	  if(komentar == ""){
		inlineMsg('komentar','Anda harus mengisi pesan.',2);
		return false;
	  }
	  if(captcha == ""){
		inlineMsg('captcha','Anda harus mengisi kode keamanan',2);
		return false;
	  }	  
	  return true;
  }

}

var MSGTIMER = 20;
var MSGSPEED = 5;
var MSGOFFSET = 3;
var MSGHIDE = 3;

function inlineMsg(target,string,autohide){
  var msg;
  var msgcontent;
  if(!document.getElementById('msg')){
    msg = document.createElement('div');
    msg.id = 'msg';
    msgcontent = document.createElement('div');
    msgcontent.id = 'msgcontent';
    document.body.appendChild(msg);
    msg.appendChild(msgcontent);
    msg.style.filter = 'alpha(opacity=0)';
    msg.style.opacity = 0;
    msg.alpha = 0;
  }else{
    msg = document.getElementById('msg');
    msgcontent = document.getElementById('msgcontent');
  }
  msgcontent.innerHTML = string;
  msg.style.display = 'block';
  var msgheight = msg.offsetHeight;
  var targetdiv = document.getElementById(target);
  targetdiv.focus();
  var targetheight = targetdiv.offsetHeight;
  var targetwidth = targetdiv.offsetWidth;
  var topposition = topPosition(targetdiv) - ((msgheight - targetheight) / 2);
  var leftposition = leftPosition(targetdiv) + targetwidth + MSGOFFSET;
  msg.style.top = topposition + 'px';
  msg.style.left = leftposition + 'px';
  clearInterval(msg.timer);
  msg.timer = setInterval("fadeMsg(1)", MSGTIMER);
  if(!autohide){
    autohide = MSGHIDE;  
  }
  window.setTimeout("hideMsg()", (autohide * 1000));
}

function hideMsg(msg){
  var msg = document.getElementById('msg');
  if(!msg.timer){
    msg.timer = setInterval("fadeMsg(0)", MSGTIMER);
  }
}

function fadeMsg(flag){
  if(flag == null){
    flag = 1;
  }
  var msg = document.getElementById('msg');
  var value;
  if(flag == 1){
    value = msg.alpha + MSGSPEED;
  }else{
    value = msg.alpha - MSGSPEED;
  }
  msg.alpha = value;
  msg.style.opacity = (value / 100);
  msg.style.filter = 'alpha(opacity=' + value + ')';
  if(value >= 99){
    clearInterval(msg.timer);
    msg.timer = null;
  } else if(value <= 1){
    msg.style.display = "none";
    clearInterval(msg.timer);
  }
}

function leftPosition(target){
  var left = 0;
  if(target.offsetParent){
    while(1){
      left += target.offsetLeft;
      if(!target.offsetParent){
        break;
      }
      target = target.offsetParent;
    }
  } else if(target.x){
    left += target.x;
  }
  return left;
}

function topPosition(target){
  var top = 0;
  if(target.offsetParent){
    while(1){
      top += target.offsetTop;
      if(!target.offsetParent){
        break;
      }
      target = target.offsetParent;
    }
  } else if(target.y){
    top += target.y;
  }
  return top;
}

if(document.images){
  arrow = new Image(7,80); 
  arrow.src = "images/msg_arrow.gif"; 
}