/*
Author: John Law
Last Modified: March 28th 2006
*/
	function selectModificationType(modificationType)
	{
		//Set the modification type
		document.forms.form.ModificationType.value = modificationType;
		
		//Set the correct image
		if(modificationType == "Stock")
		{
			ChangePicture("Stock" , "trueLight.jpg");
			ChangePicture("MildlyModified" , "falseLight.jpg");
			ChangePicture("HighlyModified" , "falseLight.jpg");
		}
		else if(modificationType == "Mildly Modified")
		{
			ChangePicture("Stock" , "falseLight.jpg");
			ChangePicture("MildlyModified" , "trueLight.jpg");
			ChangePicture("HighlyModified" , "falseLight.jpg");
		}
		else
		{
			ChangePicture("Stock" , "falseLight.jpg");
			ChangePicture("MildlyModified" , "falseLight.jpg");
			ChangePicture("HighlyModified" , "trueLight.jpg");
		}
	}
	
	function selectBarrelType(Bbl)
	{
		document.forms.form.Bbl.value = Bbl;
		if(Bbl == 4)
		{
			ChangePicture("TwoBarrel" , "falseLight.jpg");
			ChangePicture("FourBarrel" , "trueLight.jpg");
		}
		else
		{
			ChangePicture("TwoBarrel" , "trueLight.jpg");
			ChangePicture("FourBarrel" , "falseLight.jpg");
		}
	}
	
	function selectFuelType(Fuel)
	{
		document.forms.form.Fuel.value = Fuel;
		if(Fuel == "Gasoline")
		{
			ChangePicture("Gasoline" , "trueLight.jpg");
			ChangePicture("Alcohol" , "falseLight.jpg");
		}
		else
		{
			ChangePicture("Gasoline" , "falseLight.jpg");
			ChangePicture("Alcohol" , "trueLight.jpg");
		}
	}
	
	function selectSupercharged()
	{
		
		if(document.forms.form.Supercharged.value == "No")
		{
			document.forms.form.Supercharged.value = "Yes"
			ChangePicture("SuperchargedLight" , "trueLight.jpg");
			ChangePicture("NotSuperchargedLight" , "falseLight.jpg");
		}
		else
		{
			document.forms.form.Supercharged.value = "No"
			ChangePicture("SuperchargedLight" , "falseLight.jpg");
			ChangePicture("NotSuperchargedLight" , "trueLight.jpg");
		}
	}
	
	function selectSecondaries(secondaries)
	{
		if(secondaries == "Mechanical")
		{
			document.forms.form.Secondaries.value = "Mechanical";
			ChangePicture("MechanicalSecondaries" , "trueLight.jpg");
			ChangePicture("VacuumSecondaries" , "falseLight.jpg");
			ChangePicture("NoSecondaries" , "falseLight.jpg");
		}
		else if(secondaries == "Vacuum")
		{
			document.forms.form.Secondaries.value = "Vacuum";
			ChangePicture("MechanicalSecondaries" , "falseLight.jpg");
			ChangePicture("VacuumSecondaries" , "trueLight.jpg");
			ChangePicture("NoSecondaries" , "falseLight.jpg");
		}
	}
	
	function selectChoke(Choke)
	{		
		if(Choke == "Manual")
			if(document.forms.form.ManualChoke.value == "True")
				document.forms.form.ManualChoke.value = "False";
			else
				document.forms.form.ManualChoke.value = "True";
		
		if(Choke == "Electric")
			if(document.forms.form.ElectricChoke.value == "True")
				document.forms.form.ElectricChoke.value = "False";
			else
				document.forms.form.ElectricChoke.value = "True";
		
		if(Choke == "No Choke")
			if(document.forms.form.NoChoke.value == "True")
				document.forms.form.NoChoke.value = "False";
			else
				document.forms.form.NoChoke.value = "True";
		
		
		if(document.forms.form.ManualChoke.value == "True")
			ChangePicture("ManualChokeImg" , "trueLight.jpg");
		else
			ChangePicture("ManualChokeImg" , "falseLight.jpg");
		
		if(document.forms.form.ElectricChoke.value == "True")
			ChangePicture("ElectricChokeImg" , "trueLight.jpg");
		else
			ChangePicture("ElectricChokeImg" , "falseLight.jpg");
		
		if(document.forms.form.NoChoke.value == "True")
			ChangePicture("NoChokeImg" , "trueLight.jpg");
		else
			ChangePicture("NoChokeImg" , "falseLight.jpg");
		
	}
	
	function selectStreet()
	{
		if(document.forms.form.Street.value == "True")
		{
			document.forms.form.Street.value = "False";
			ChangePicture("StreetLight" , "falseLight.jpg");
		}
		else
		{
			document.forms.form.Street.value = "True";
			ChangePicture("StreetLight" , "trueLight.jpg");
		}
	}
	
	function selectRace()
	{
		if(document.forms.form.Race.value == "True")
		{
			document.forms.form.Race.value = "False";
			ChangePicture("RaceLight" , "falseLight.jpg");
		}
		else
		{
			document.forms.form.Race.value = "True";
			ChangePicture("RaceLight" , "trueLight.jpg");
		}
	}
	
	function selectOffRoad()
	{
		if(document.forms.form.OffRoad.value == "True")
		{
			document.forms.form.OffRoad.value = "False";
			ChangePicture("OffRoadLight" , "falseLight.jpg");
		}
		else
		{
			document.forms.form.OffRoad.value = "True";
			ChangePicture("OffRoadLight" , "trueLight.jpg");
		}
	}
	
	function selectMarine()
	{
		if(document.forms.form.Marine.value == "True")
		{
			document.forms.form.Marine.value = "False";
			ChangePicture("MarineLight" , "falseLight.jpg");
		}
		else
		{
			document.forms.form.Marine.value = "True";
			ChangePicture("MarineLight" , "trueLight.jpg");
		}
	}
	
	
	function ChangePicture(id, url)
	{
		var picture = document.getElementById(id);
		picture.src = url;
	}	
	
	function proceed(step)
	{
		if(isNaN(step))
			step = parseInt(document.forms.form.step.value);
		
		if(step == 0)
		{
			document.forms.form.Supercharged.value = "No";
			document.forms.form.CID.value = 1;
			document.forms.form.RPM.value = 1;
			window.location = "carbselection.asp?"; 
		}
			
		document.forms.form.step.value = step + 1
		
		document.forms.form.submit();
	}