<SCRIPT language=JavaScript1.2>
<!--
// 一个简单的测试是否IE浏览器的表达式
isIE = (document.all ? true : false);

// 得到IE中各元素真正的位移量，即使这个元素在一个表格中
function getIEPosX(elt) { return getIEPos(elt,"Left"); }
function getIEPosY(elt) { return getIEPos(elt,"Top"); }
function getIEPos(elt,which) {
iPos = 0
while (elt!=null) {
iPos += elt["offset" + which]
elt = elt.offsetParent
}
return iPos
}

function getXBrowserRef(eltname) {
return (isIE ? document.all[eltname].style : document.layers[eltname]);
}

function hideElement(eltname) { getXBrowserRef(eltname).visibility = 'hidden'; }

// 按不同的浏览器进行处理元件的位置
function moveBy(elt,deltaX,deltaY) {
if (isIE) {
elt.left = elt.pixelLeft + deltaX;
elt.top = elt.pixelTop + deltaY;
} else {
elt.left += deltaX;
elt.top += deltaY;
}
}

function toggleVisible(eltname) {
elt = getXBrowserRef(eltname);
if (elt.visibility == 'visible' || elt.visibility == 'show') {
elt.visibility = 'hidden';
} else {
fixPosition(eltname);
elt.visibility = 'visible';
}
}

function setPosition(elt,positionername,isPlacedUnder) {
positioner = null;
if (isIE) {
positioner = document.all[positionername];
elt.left = getIEPosX(positioner);
elt.top = getIEPosY(positioner);
} else {
positioner = document.images[positionername];
elt.left = positioner.x;
elt.top = positioner.y;
}
if (isPlacedUnder) { moveBy(elt,0,positioner.height); }
}
//------------------------------------------------------------
// fixPosition()函数把eltname参数改成eltname+'Pos'的名字
//
function fixPosition(eltname) {
elt = getXBrowserRef(eltname);
positionerImgName = eltname + 'Pos';
// 把PlacedUnder设为false
isPlacedUnder = true;
if (isPlacedUnder) {
setPosition(elt,positionerImgName,true);
} else {
setPosition(elt,positionerImgName)
}
}

// fixPositions() 在改变大小后，把所有的物件放置到正确的位置上
function fixPositions()
{
fixPosition('mookie');
}

// -->
</SCRIPT>