// JavaScript Document
function pular(){
	if(window.event.srcElement.type == 'text'){
		var ele = window.event.srcElement;
		var index = ele.sourceIndex;
		if(ele.value.length == ele.getAttribute('maxlength')){
			document.all.item(index+1).focus();
		}
		
	}
}
document.onkeyup = pular;