toggle divs in jquery based on number

I have 4 selectors 1 - 2 - 3 - 4

and 4 divs div1, div2, div3, div4

To start selector 1 is checked, div1 is visible while 2-4 are hidden. If selector 3 is checked, divs1-2-3 should show, if selector 2 is then checked, divs1-2 should show and 3-4 would be hidden again. Looking for simple way to set this up so i dont have to write 4 functions for it. Any ideas?

 

Something like this should do (not tested) :

function show(number) {
for (var i = 1; i < 5; i++) {
$('#div' + i).hide();
}

for (var i = 1; i < number + 1; i++) {
$('#div' + i).fadeIn(500);
}

}