for loop in checkboxes js

[Alfrieda]

Hello, How I can write the following code in a for loop?


if (theF.red.checked) {

cost += parseFloat(theF.red.value);

}

if (theF.yellow.checked) {

cost += parseFloat(theF.yellow.value);

}

if (theF.blue.checked) {

cost += parseFloat(theF.blue.value);

}