/*
Detta script innehåller funktioner för att validera formulär
*/

function check_empty(form)

{

if (IsEmpty(form.name))
	{
	alert("Namnet kan inte vara blankt");
	return false;
	}

return true;
}

function mess(type)
{
	if(type='cat')
		{
		alert("Kategorin tillagd")
		}

}

function check_numeric(form)
{

	if (!IsNumeric(form.euro.value))
		{ 	
		alert("Det måste vara ett tal i euro-fältet") ;
		form.euro.focus();
		return false;
		}	
		
	if (!IsNumeric(form.dollar.value))
		{ 	
		alert("Det måste vara ett tal i dollar-fältet") ;
		form.dollar.focus();
		return false;
		}
		
	if (!IsNumeric(form.frakt.value))
		{ 	
		alert("Det måste vara ett tal i frakt-fältet") ;
		form.frakt.focus();
		return false;
		}
	alert("Uppdateringen genomfördes");
	return true;
}

function IsNumeric(sText)
{
   var ValidChars = "0123456789.";
   var IsNumber=true;
   var Char;

 
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;
   
   }

function IsEmpty(aTextField) {
   if ((aTextField.value.length==0) ||
   (aTextField.value==null)) {
      return true;
   }
   else { return false; }
}	


function validera(form)
{
var maxi=9999;
var mini=0;
var quantity = parseInt(form.quantity.value, 10);
  if (quantity>maxi)
  {
      alert("You cannot order that many prodcuts")
	  form.quantity.focus();
	  return false;
  }

  if (quantity<mini)
  {
      alert("You have to order a positive amount of products")
	  form.quantity.focus();
	  return false;
  }
  if (IsEmpty(form.quantity))
  {
	  alert("There has the be a number in the quantity field")
	  form.quantity.focus();
	  return false;
  }
  if (!IsNumeric(form.quantity.value))
  {
	  alert("There has to be a number in the quantity field")
	  form.quantity.focus();
	  return false;
  }

 
	    
  alert("The amount of the product was added to the cart");
  return true;
}

function validera_send(form)
{
  form.submit.click();
}