var notRequired = new Array("Mobilnummer","Antal deltagare","email_from");
validateForm = function(myForm)
{	
	var validForm = true;
	for(var i = 0; i<myForm.length; i++)
	{
		if(myForm.elements[i].type=="text" && CheckIfRequired(myForm.elements[i].name))
		{
			validForm = (myForm.elements[i].value == "")?false:true;
			if(!validForm)
			{
				var message = "Obligatorisk uppgift: "+myForm.elements[i].name+"!";
				myForm.elements[i].focus();
				alert(message);
				break;
			}
		}
	}
	return validForm;
}
CheckIfRequired = function(elementName)
{
	var required = true;
	for (var i = 0; i<notRequired.length;i++)
	{
		required = (notRequired[i]==elementName) ? false:true;
		if (!required) break;
	}
	return required;
}