function changeTabSelected(tab) {
	for(var a = 1; a <= 4; a++) {
		var t = document.getElementById('aSection'+a);
		if(t) {
			if(a==tab) {
				t.className = 'selected';
			}else {
				t.className = '';
				t.style.background = "transparent";
			}
			
			if(a==tab && tab==1) {
				t.style.background = "url(http://localhost/age/images/web/bgTab_1.jpg)";
			}else if(a==tab && tab==2) {
				t.style.background = "url(http://localhost/age/images/web/bgTab_1.jpg)";
			}else if(a==tab && tab==3) {
				t.style.background = "url(http://localhost/age/images/web/bgTab_3.jpg)";
			}else if(a==tab && tab==4) {
				t.style.background = "url(http://localhost/age/images/web/bgTab_4.jpg)";
			}
		}
	}
}

/*
function changeTabSelected(tab) {
	var especialTab = false;
	if(especialTab == false) {
		for(var a = 1; a <= 4; a++) {
			var t = document.getElementById('aSection'+a);
			if(t) {
				if(a==tab) {
					t.className = 'selected';
				}else {
					t.className = '';
					t.style.background = "transparent";
				}
				
				if(a==tab && tab==1) {
					t.style.background = "url(http://localhost/age/images/web/bgTab_1.jpg)";
				}else if(a==tab && tab==2) {
					t.style.background = "url(http://localhost/age/images/web/bgTab_1.jpg)";
				}else if(a==tab && tab==3) {
					t.style.background = "url(http://localhost/age/images/web/bgTab_3.jpg)";
				}else if(a==tab && tab==4) {
					t.style.background = "url(http://localhost/age/images/web/bgTab_4.jpg)";
				}
			}
		}
	}else {
		if(tab>=3) {
			tab = tab-1;
		}
		for(var a = 1; a <= 5; a++) {
			var t = document.getElementById('aSection'+a);
			if(t) {
				if(a==tab) {
					t.className = 'selected';
				}else {
					t.className = '';
					t.style.background = "transparent";
				}
				
				if(a==tab && tab==1) {
					t.style.background = "url(http://localhost/age/images/web/bgTab_1.jpg)";
				}else if(a==tab && tab==2) {
					t.style.background = "url(http://localhost/age/images/web/bgTab_1.jpg)";
				}else if(a==tab && tab==3) {
					t.style.background = "url(http://localhost/age/images/web/bgTab_3.jpg)";
				}else if(a==tab && tab==4) {
					t.style.background = "url(http://localhost/age/images/web/bgTab_4.jpg)";
				}
			}
		}
	}
}*/