function changeGalleryImg(idSelected) {
	var id = "";
	var element;
	
	for (var i = 1; i <= 9; i++) {
		id = "g-" + i + "s";
		element = document.getElementById(id);
		element.className = element.className.replace(" selected", "");
		if (id == idSelected) {
			element.className += " selected";
		}
	}
	
	for (var i = 1; i <= 9; i++) {
		id = "g-" + i;
		element = document.getElementById(id);
		element.className = element.className.replace(" selected", "");
		if (id + "s" == idSelected) {
			element.className += " selected";
		}
	}
}
function changeGalleryImgSF(idSelected) {
	var id = "";
	var element;
	
	for (var i = 1; i <= 9; i++) {
		id = "gsf-" + i + "s";
		element = document.getElementById(id);
		element.className = element.className.replace(" selected", "");
		if (id == idSelected) {
			element.className += " selected";
		}
	}
	
	for (var i = 1; i <= 9; i++) {
		id = "gsf-" + i;
		element = document.getElementById(id);
		element.className = element.className.replace(" selected", "");
		if (id + "s" == idSelected) {
			element.className += " selected";
		}
	}
}
function changeTab(num) {
	var gl1 = document.getElementById("gl");
	var gl2 = document.getElementById("gl-sf");
	var gr1 = document.getElementById("gr");
	var gr2 = document.getElementById("gr-sf");
	var tab1 = document.getElementById("tab-1");
	var tab2 = document.getElementById("tab-2");

	if(num==1) {
		gl1.style.display = "block";
		gl2.style.display = "none";
		gr1.style.display = "block";
		gr2.style.display = "none";
		tab1.className = "selected";
		tab2.className = "";
	} else if(num==2) {
		gl1.style.display = "none";
		gl2.style.display = "block";
		gr1.style.display = "none";
		gr2.style.display = "block";
		tab1.className = "";
		tab2.className = "selected";
	}
}