// JavaScript Document
function resizeCell(id,value) {
  var cell=document.getElementById(id);
  //alert(cell.offsetHeight);
  cell.setAttribute('height',value); 
}
function validar(x){
  if(x == 'contact'){
	email = document.form1.email.value;
	if(document.form1.nombre.value == ''){
	  alert('Name is required.');
	}else if(email == "" || email.indexOf ('@', 1) == -1 || email.indexOf ('.', 3) == -1){
	  alert('Email is required.');
	}else if(document.form1.tema.value == ''){
	  alert('Subject is required.');
	}else if(document.form1.contenido.value == ''){
	  alert('Comments is required.');
	}else{
	  document.form1.submit();
	}
  }
  if(x == 'contacto'){
	email = document.form1.email.value;
	if(document.form1.nombre.value == ''){
	  alert('Nombre es requerido');
	}else if(email == "" || email.indexOf ('@', 1) == -1 || email.indexOf ('.', 3) == -1){
	  alert('Email es requerido.');
	}else if(document.form1.tema.value == ''){
	  alert('Tema es requerido.');
	}else if(document.form1.contenido.value == ''){
	  alert('Comentarios es requerido.');
	}else{
	  document.form1.submit();
	}
  }
}