// JavaScript Document<
function change_page(pagina){
	if (pagina != ""){
		document.getElementById("Number").value = pagina;
		document.getElementById("pbk").value = "1";
		document.getElementById("frmMain").submit();
	}
}
function change_date(valore){
	if (valore != ""){
		document.getElementById("Date").value = valore;
		document.getElementById("Number").value = 1;
		document.getElementById("pbk").value = "1";
		document.getElementById("frmMain").submit();
	}
}
function change_edition(valore){
	if (valore != ""){
		document.getElementById("Edition").value = valore;
		document.getElementById("pbk").value = "1";
		document.getElementById("frmMain").submit();
	}
}

function findPos(obj) {
	var curleft = curtop = 0;
	
	if (obj.offsetParent) {
		
		curleft = obj.offsetLeft
		curtop = obj.offsetTop
		while (obj = obj.offsetParent) {
			curleft += obj.offsetLeft
			curtop += obj.offsetTop
		}
	}
	return [curtop];
}
function chiudi_overlay(){
document.getElementById("overlay").style.display = "none";
}
function carica_popunder(){
var finestra = window.open("popup.php", "", "height=400;width=400");
}

function openoverlay() {
  document.getElementById('overlay').style.display = 'block';
}
function closeoverlay() {
  document.getElementById('overlay').style.display = 'none';
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}