function toggleDiv(divid){
	if (divid == 'login') {
		document.getElementById('login').style.visibility = 'visible';
		document.getElementById('register').style.visibility = 'hidden';		
	}
	else if (divid == 'register') {
		document.getElementById('register').style.visibility = 'visible';
		document.getElementById('login').style.visibility = 'hidden';
	}

    /*if(document.getElementById(divid).style.display == 'none'){
      document.getElementById(divid).style.display = 'block';
    }else{
      document.getElementById(divid).style.display = 'none';
    }*/
  }
  
function clearInput(field) {
  	document.getElementById(field).value = '';
 }