function setInputs(arr_1,arr_2) {
	for (var i = 0; i<arr_1.length; i++) {
		var x = document.getElementById(arr_2[i]);
		var z = document.createAttribute('maxlength');
		z.value = arr_1[i];
		x.setAttributeNode(z);
		x.relatedElement = arr_2[i+1];
		x.onkeyup = check;
	}
}
function check() {
	var num = this.value.length;
	var len = this.getAttribute("maxlength");
	if (num < len) {
		this.focus();
	} else {
		document.getElementById(this.relatedElement).focus();
	}
}