window.onload = function()
	{
	MM_preloadImages('images/m1m.jpg','images/m2m.jpg','images/m3m.jpg','images/m4m.jpg','images/m5m.jpg','images/m6m.jpg');
	$S('#calc').action({
		onclick: function()
			{
			var w = $E('w').value;
			var h = $E('h').value;
			var d = $E('d').value;
			var q = $E('quantity').value;
			var res = w*h*d*q;
			res /= 6000;
			$E('result').value = res;
			Fat.fade_element('result');
			return false;
			}
		});
	$S('.calc_entity').action({
		onfocus: function()
			{
			this.value = '';
			}
		});
	};

function Trim(sString) {
	var sSpace = ' ';
	iPos = sString.indexOf(sSpace);
	iLen = sString.length;
	
	if (iPos == -1) return sString;
	sString = sString.substring(0, iPos) + sString.substring(iPos + 1, iLen);
	return Trim(sString);
}

function checkemail(sString) {
	substremail = sString.split("@")
   if (substremail.length > 1)
   {
	  index = substremail[1].indexOf(".")
	  if (index == -1)
	  {
		 return false
	  }
	  else
	  {
		 return true
	  }
   }
   else
   {
	  return false
   }

}
function Validate(form)
	{
	var valFormInput = '';
			
	if ((form.customer.value) == "")
		{
		valFormInput = valFormInput + "- Customer\n";
		}
	if (!checkemail(Trim(form.email.value)))
		{
		valFormInput = valFormInput + "- Email address (invalid)\n";
		}
	if ((form.mawb.value) == "")
		{
		valFormInput = valFormInput + "- MAWB\n";
		}
	if ((form.flight_date.value) == "")
		{
		valFormInput = valFormInput + "- Flight Date\n";
		}
	if ((form.destination.value) == "")
		{
		valFormInput = valFormInput + "- Destination\n";
		}
	if ((form.pieces.value) == "")
		{
		valFormInput = valFormInput + "- Pieces\n";
		}
	if ((form.weight.value) == "")
		{
		valFormInput = valFormInput + "- Weight\n";
		}
	if ((form.dimension.value) == "")
		{
		valFormInput = valFormInput + "- Dimension\n";
		}
	if ((form.special_handling.value) == "")
		{
		valFormInput = valFormInput + "- Special Handling\n";
		}
		
		
	if (valFormInput.length > 0)
		{
		alert('Please fill in the following contact information before sending the enquiry:\n\n' + valFormInput);
		return false;
		}
	else
		{
		return true;														
		}
	}