Difficult to set the max. charge current to 6 Ampere

[kalwados]

I find it very difficult to set the charge current slider to 6 A, because the slider jumps from 6 A to Zero. With some modifications to web.js this problem can be solved; patch attached,
web.js.patch

[steff393]

Thanks, will be implemented, but I'd propose the following form:

if ((val >= 0) && (val <= 30)) {
	elementCurrentSlider.value = val = 0;
}
if ((val > 30) && (val <= 60)) {
	elementCurrentSlider.value = val = 60;
}