soma extrato

somaextrato.js

var indexes = {date:0,description:3,valueSign:6,value:5,balance:7};
var sums = new Array();

function allMonthsSummed(){
	console.log("allMonthsSummed");
	var divMenuAno = document.getElementById('TRNnoprint03');
	var values = document.createElement("textarea");
	values.style.width = "100%";
        values.style.height = "25em";
	for(var i in sums)
		values.value += sums[i].date+"|"+sums[i].balance+"\n";
	divMenuAno.appendChild(values);
}

function getSumForThisMonth(){
	var lineCount = 1;
	var dateElement = document.getElementById('date'+lineCount);
	var balanceLine;
	while(dateElement != null){
		balanceLine = dateElement.parentNode.children;
		var date = balanceLine[indexes.date].innerHTML;
		var valueSign = balanceLine[indexes.valueSign].innerHTML;
		var value = balanceLine[indexes.value].innerHTML;
		var description = balanceLine[indexes.description].innerHTML;
		var balance = balanceLine[indexes.balance].innerHTML.replace(/^\s+|\s+$/g,"");

		if(balance != "")
			sums.push({date:date+"/"+getCurrentBalanceYear(),balance:balance});
		lineCount++;
		dateElement = document.getElementById('date'+lineCount);
	}
}

function getSumForThisMonthAndAdvance(){
	console.log("getSumForThisMonthAndAdvance");
	getSumForThisMonth();

	var nextMonthLink = document.getElementById('linhaMesProximo').children[0];
	var isThereAnotherMonth = nextMonthLink != null;
	if(isThereAnotherMonth){
		var d = new Date();
		var thisMonth = d.getMonth();
		var re = new RegExp("javascript:BuscaMesExtrato\\((\\d)");
		var m = re.exec(nextMonthLink.href);
		var advancingMonthWillReloadThePage = m[1] == thisMonth;
		if(advancingMonthWillReloadThePage){
			allMonthsSummed();
			return;
		}
		eval(nextMonthLink.href);
	}else{
		allMonthsSummed();
		return;
	}
	function waitNextMonth() {
		if(document.getElementById('header0') == null) {
			console.log("wait");
        		setTimeout(waitNextMonth, 500);
		}else{
			console.log("done");
		    	getSumForThisMonthAndAdvance();
		}
		
	};
	waitNextMonth();
}

function getCurrentBalanceYear(){
	var re = new RegExp("- (\\d{4})");
	var m = re.exec(document.getElementById('header0').innerHTML);
	return m[1];
}

getSumForThisMonthAndAdvance();