/* Page Up */

function pageUp() {
var x1 = x2 = x3 = 0;
var y1 = y2 = y3 = 0;

if (document.documentElement) {
x1 = document.documentElement.scrollLeft || 0;
y1 = document.documentElement.scrollTop || 0;
}

if (document.body) {
x2 = document.body.scrollLeft || 0;
y2 = document.body.scrollTop || 0;
}

x3 = window.scrollX || 0;
y3 = window.scrollY || 0;

var x = Math.max(x1, Math.max(x2, x3));
var y = Math.max(y1, Math.max(y2, y3));

window.scrollTo(Math.floor(x / 2), Math.floor(y / 2));

if (x > 0 || y > 0) {
window.setTimeout("pageUp()", 10);
}
}





/* Page Move */

function getElemPosition(elem) {
var obj = new Object();
obj.x = elem.offsetLeft;
obj.y = elem.offsetTop;
while(elem.offsetParent) {
elem = elem.offsetParent;
obj.x += elem.offsetLeft;
obj.y += elem.offsetTop;
}
return obj;
}

var eventTimer;
var restScroll=0;

function pageMove(base,move){
var obj_base  = getElemPosition(base);
var elem_move = document.getElementById(move);
var obj_move  = getElemPosition(elem_move);
restScroll = obj_move.y-obj_base.y;
eventTimer = setInterval(setScrollPosition,10);
}

function setScrollPosition() {
var moveValue = Math.round(restScroll/2);
parent.scrollBy(0,moveValue);
restScroll = (restScroll>0)?restScroll-moveValue:restScroll-moveValue;
if(moveValue==0){
clearInterval(eventTimer);
restScroll=0;
}
}





/* Show or Hide */

function showHide(id){
var disp = document.getElementById(id).style.display;
if(disp == "block"){
document.getElementById(id).style.display = "none";
}else{
document.getElementById(id).style.display = "block";
}
return false;
}






/* Pulldown menu */

function jumpMenu(targ,selObj,restore){ //v3.0
eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
if (restore) selObj.selectedIndex=0;
}