//alert('teste');
var selectedName = "";
var selectedTab;

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		var count = 0;
		while ((c.charAt(0)==' ') && (count <100)) {
                  c = c.substring(1,c.length);
		  count++;
                }
		if (count >= 100) {
			return null;
                }
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}


function resetButtonStatus(button) {
	rollout(button);
	var elementLeft = document.getElementById(button+"ContentLeft");
	var elementRight = document.getElementById(button+"ContentRight");
	elementLeft.style.display = "none";
	elementRight.style.display = "none";
}


function resetAllButtonStatus() {
	resetButtonStatus('ea60');
	resetButtonStatus('ea500');
}

function initializeButtons() {
	resetAllButtonStatus();
	selectedTab = 'ea60';
	
	if (selectedTab == null) {
		clickButton('smb');
	} else {
		try {
		  clickButton(selectedTab);
		} catch(err) {
		  clickButton('smb');
		}
	}
}

function rollover(button) {
	if (selectedName != button) {
		document.getElementById(button).src = "/opencms/opencms/images/buttons/" + button + "-on.png";
	}
}

function rollout(button) {	
	if (selectedName != button) {
		document.getElementById(button).src = "/opencms/opencms/images/buttons/" + button + "-off.png";
	}
}

function selectButton(button) {
	selectedName = button;
	
	var elementLeft = document.getElementById(button+"ContentLeft");
	var elementRight = document.getElementById(button+"ContentRight");
	elementLeft.style.display = "block";
	elementRight.style.display = "block";
}

function clickButton(button) {
	try {
	if (selectedName != button) {
		selectedName = "";
		resetAllButtonStatus();
		document.getElementById(button).src = "/opencms/opencms/images/buttons/" + button + "-selected.png";
		selectButton(button);
		//createCookie('selectedTab',button,7)
	}
	} catch (err) {
		//clickButton('classroomServer');
	}
}