// Function Forms: Check Fields

	function checkFields() {                       // field validation -
	if ( 	(document.emailform.nome.value=="")  ||
			(document.emailform.tel.value=="")   ||   // checks if fields are blank.
	     	(document.emailform.email.value=="") ) // forms.javascriptsource.com
	   {
	   		alert("(*) Campos Obrigatórios");
	   		return false;
	   }
	
	else 
	   {
	   
	      alert("Obrigado pelo Envio!");
	      return true;
	      
	   }
}
//  End -->


// Preload Images  -->
if(document.images)
{
  var image_array = new Array();
	
  // path to the directory with images
  var path = 'images/';

  // enumeration of the "active" images
  image_array[0] = path + "mn01_on.jpg";
  image_array[1] = path + "mn02_on.jpg";
  image_array[2] = path + "mn03_on.jpg";
  image_array[3] = path + "mn04_on.jpg";
  image_array[4] = path + "mn05_on.jpg";
 

  var preload_image = new Array ();
 
  for(var i=0; i<image_array.length; i++)
  {
    preload_image[i]= new Image();
    preload_image[i].src = image_array[i];
  }
}
//-->


// Menu Mouseover Images  -->

function roll_over(img_name, img_src)
   {
   document[img_name].src = img_src;
   }

// END -->


// Calculadora IMC -->
function calcimc (m,cm,kg) {
	cm = cm * 1;
	cm = cm + m * 100;
	cm = cm / 100;
	cm = cm * cm;
	valor = kg / cm * 100;
	valor = valor - valor % 1;
	valor = valor / 100;

	min = cm * 18.5;
	max = cm * 24.9 ;
	min = (min - min % 1) + 1;
	max = max - max % 1;
	
  if (valor > 0 && max > 0) {
	 
  	document.getElementById('resimc').style.color = "#FF9600";
  	document.getElementById('resimc').innerHTML = "Seu IMC: " + valor;
  	document.getElementById('ideal').style.color = "#229F32";
  	document.getElementById('ideal').innerHTML = "Seu Peso Ideal: " + min + " Kg a " + max + " Kg";
  
  } else {
  	
  	document.getElementById('ideal').style.color = "red";
  	document.getElementById('ideal').innerHTML = "Informe seu Peso e Altura!";
  }
}
// -->