
<!-- 

var offset = 7.0+1.0/3.0
var delta = 1.0/3.0
var poffset = 31.0+1.0/3.0
var pdelta = 4.0/3.0
var widthfactor = 3.0/8.0
var widthstep = 3.0/16.0

function updateAll(form)
{
	form.cm.value        = Math.round((form.inch.value*2.54)*10)/10;
	form.size_us.value   = Math.round(((form.inch.value-offset)/delta)*10)/10;
	form.size_uk.value   = Math.round((form.size_us.value-1.0)*10)/10;
	form.size_pp.value   = Math.round((form.size_uk.value*pdelta+poffset)*10)/10;
	
}

function neuUS(form)
{
	form.inch.value      = eval(form.size_us.value)*delta+offset;
	updateAll(form);
}

function neuUK(form)
{
	form.inch.value      = (eval(form.size_uk.value)+1.0)*delta+offset;
	updateAll(form);
}

function neuFR(form)
{
	form.inch.value      = ((eval(form.size_pp.value)-poffset)/pdelta+1.0)*delta+offset;
	updateAll(form);
}

function neuCM(form)
{
	form.inch.value      = eval(form.cm.value)/2.54;
	updateAll(form);
}

function neuMain(form)
{
	updateAll(form);
}



// -->