function submitForm()
{
        document.forms.theform.submit();
}

function ShowPDF(aURL) {
	var pdf;
	pdf=window.open(aURL,"pdf","height=740,width=850,scrollbars=yes,resizable=yes,toolbar=yes");
	pdf.focus();
}

function colourChange(newcolour)
{
	if(newcolour == "blkwht")
	{
		document.forms.theform.colour.value = "blkwht";
	}
	else
	{
		document.forms.theform.colour.value = "colour";
	}
	document.forms.theform.submit();
}

function timeChange(steps)
{
	document.forms.theform.steps.value = steps;
	document.forms.theform.submit();
}

function periodChange(menupos,period_type)
{
    if (period_type == 1) {
	if (menupos == 0)
		document.forms.theform.period.value = "1120";
	else if(menupos == 1) 
		document.forms.theform.period.value = "1625";
	else if(menupos == 2) 
		document.forms.theform.period.value = "2130";
	else if(menupos == 3) 
		document.forms.theform.period.value = "2635";
	else if(menupos == 4) 
		document.forms.theform.period.value = "3140";
	else if(menupos == 5)
		document.forms.theform.period.value = "3645";
	else if(menupos == 6)
                document.forms.theform.period.value = "4150";
	else if(menupos == 7)
                document.forms.theform.period.value = "4655";
	else if(menupos == 8)
                document.forms.theform.period.value = "5160";
	else if(menupos == 9)
                document.forms.theform.period.value = "5665";
	else if(menupos == 10)
                document.forms.theform.period.value = "6170";
	else if(menupos == 11)
                document.forms.theform.period.value = "6675";
        else if(menupos == 12)
                document.forms.theform.period.value = "7180";
        else if(menupos == 13)
                document.forms.theform.period.value = "7685";
        else if(menupos == 14)
                document.forms.theform.period.value = "8190";
        else if(menupos == 15)
                document.forms.theform.period.value = "8695";
        else if(menupos == 16)
                document.forms.theform.period.value = "9100";
        else if(menupos == 17)
                document.forms.theform.period.value = "9605";

    } 
    else if (period_type == 2) {
	if (menupos == 0)
		document.forms.theform.period.value = "1130";
	else if(menupos == 1) 
		document.forms.theform.period.value = "1635";
	else if(menupos == 2) 
		document.forms.theform.period.value = "2140";
	else if(menupos == 3) 
		document.forms.theform.period.value = "2645";
	else if(menupos == 4) 
		document.forms.theform.period.value = "3150";
	else if(menupos == 5)
		document.forms.theform.period.value = "3655";
	else if(menupos == 6)
                document.forms.theform.period.value = "4160";
	else if(menupos == 7)
                document.forms.theform.period.value = "4665";
	else if(menupos == 8)
                document.forms.theform.period.value = "5170";
	else if(menupos == 9)
                document.forms.theform.period.value = "5675";
	else if(menupos == 10)
                document.forms.theform.period.value = "6180";
	else if(menupos == 11)
                document.forms.theform.period.value = "6685";
        else if(menupos == 12)
                document.forms.theform.period.value = "7190";
        else if(menupos == 13)
                document.forms.theform.period.value = "7695";
        else if(menupos == 14)
                document.forms.theform.period.value = "8100";
        else if(menupos == 15)
                document.forms.theform.period.value = "8605";
    }
    else if (period_type == 3) {
       if (menupos == 0)
                document.forms.theform.period.value = "1140";
        else if(menupos == 1)
                document.forms.theform.period.value = "1645";
        else if(menupos == 2)
                document.forms.theform.period.value = "2150";
        else if(menupos == 3)
                document.forms.theform.period.value = "2655";
        else if(menupos == 4)
                document.forms.theform.period.value = "3160";
        else if(menupos == 5)
                document.forms.theform.period.value = "3665";
	else if(menupos == 6)
                document.forms.theform.period.value = "4170";
        else if(menupos == 7)
                document.forms.theform.period.value = "4675";
        else if(menupos == 8)
                document.forms.theform.period.value = "5180";
        else if(menupos == 9)
                document.forms.theform.period.value = "5685";
        else if(menupos == 10)
                document.forms.theform.period.value = "6190";
        else if(menupos == 11)
                document.forms.theform.period.value = "6695";
        else if(menupos == 12)
                document.forms.theform.period.value = "7100";
        else if(menupos == 13)
                document.forms.theform.period.value = "7605";
    }

    document.forms.theform.submit();
}

function clickableMap(newstate)
{
	document.forms.area.value = newstate;
	document.forms.theform.submit();
}

function mapChange()
{
	document.forms.theform.submit();
}

function donothing() { }