// JavaScript Document

function next() {
	//alert(obj.value+" "+obj.selectedIndex+" "+obj.options[obj.selectedIndex].text);
	if (document.getElementById("select_page")) {
		var obj = document.getElementById("select_page");
		if (obj.options[obj.selectedIndex+1]) window.location = obj.options[obj.selectedIndex+1].value;
	}
	else {
		alert("No more ...");
		return false;	
	}
}
function next_check() {
	//alert(obj.value+" "+obj.selectedIndex+" "+obj.options[obj.selectedIndex].text);
	if (document.getElementById("select_page")) {
		var obj = document.getElementById("select_page");
		if (!obj.options[obj.selectedIndex+1]){
		document.next_btn.style.visibility="hidden";
		}
	}
}
function jump_page(obj) {
	window.location = obj.value;
}
function previous() {
	//alert(obj.value+" "+obj.selectedIndex+" "+obj.options[obj.selectedIndex].text);
	if (document.getElementById("select_page")) {
		var obj = document.getElementById("select_page");
		if (obj.options[obj.selectedIndex-1]) window.location = obj.options[obj.selectedIndex-1].value;
	}
	else {
		alert("No more ...");
		return false;	
	}
}
function prev_check() {
	//alert(obj.value+" "+obj.selectedIndex+" "+obj.options[obj.selectedIndex].text);
	if (document.getElementById("select_page")) {
		var obj = document.getElementById("select_page");
		if (obj.selectedIndex==0){
		document.prev_btn.style.visibility="hidden";
		}
	}
}
function jump_page(obj) {
	window.location = obj.value;
}