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)
{
	if (menupos == 0)
		document.forms.theform.period.value = "an";
	else if(menupos == 1) 
		document.forms.theform.period.value = "jan";
	else if(menupos == 2) 
		document.forms.theform.period.value = "feb";
	else if(menupos == 3) 
		document.forms.theform.period.value = "mar";
	else if(menupos == 4) 
		document.forms.theform.period.value = "apr";
	else if(menupos == 5)
		document.forms.theform.period.value = "may";
	else if(menupos == 6)
                document.forms.theform.period.value = "jun";
	else if(menupos == 7)
                document.forms.theform.period.value = "jul";
	else if(menupos == 8)
                document.forms.theform.period.value = "aug";
	else if(menupos == 9)
                document.forms.theform.period.value = "sep";
	else if(menupos == 10)
                document.forms.theform.period.value = "oct";
	else if(menupos == 11)
                document.forms.theform.period.value = "nov";
        else if(menupos == 12)
                document.forms.theform.period.value = "dec";

document.forms.theform.submit();
}

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

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

function donothing() { }