Mine

function medeltal(tal1, tal2, tal3, tal4){	var svar = tal1 + tal2 + tal3 + tal4 / 4;	return(svar);}                                tal1 = parseInt(prompt("Ange tal: "));		tal2 = parseInt(prompt("Ange tal: "));		tal3 = parseInt(prompt("Ange tal: "));		tal4 = parseInt(prompt("Ange tal: "));			medeltal(tal1, tal2, tal3, tal4);				var svar2 = medeltal(svar);		document.write(svar2);