function dropdownmenu( elemAnchor, dropdownName ) {
    elemAnchor.className = 'selected';
    var elemDropDown = document.getElementById(dropdownName);
    elemDropDown.style.left= (findPos(elemAnchor) - 5) + 'px';
    //    alert("elemDropDown left: " + elemDropDown.style.left);
    elemDropDown.style.display = 'inherit';
    elemDropDown.elemAnchor = elemAnchor;
} 

function findPos( obj ) {
    var curleft = 0;
    if (obj.offsetParent) {
	do {
	    curleft += obj.offsetLeft;
	} while (obj = obj.offsetParent);
    }
    return curleft;
}

function makeLinkRed(linkID) {
    document.getElementById(linkID).style.color='red';
}

function showABCDE() { 
    if (document.getElementById('ABCDEtable').style.visibility != 'visible') {
	document.getElementById('ABCDEtable').style.visibility = 'visible'; 
	document.getElementById('search_a').style.color = 'red';
    } else {
	document.getElementById('ABCDEtable').style.visibility = 'hidden'; 
	document.getElementById('search_a').style.color = '#555';
    }
} 

function showEmailDropdown() {
    document.getElementById('email-dropdown').style.visibility = 'visible'; 
    document.getElementById('email-dropdown').style.borderLeft=
	document.getElementById('email-dropdown').style.borderRight=
	'1px dotted #ccc';
    document.getElementById('email-dropdown').style.borderTop=
	'1px solid white';
}

function swapImage(img, new_src) {
    var cur_src=img.src.substring(img.src.lastIndexOf("/")+1);
    if (cur_src == new_src) {
	img.src = img.old_src;
    }
    else {
	img.old_src = cur_src;
	img.src = new_src;
    }
}




// image swap
function chosenImage(qty, chosen){
    // set all images to grey
    // for i = 1 to qty
    //    set box_i to images/grey_square.gif
    // set image num to dark grey
    // set box_chosen to images/dark_grey_square.gif
}


//apple.js

var DDSPEED = 10;
var DDTIMER = 15;

// main function to handle the mouse events //
function ddMenu(id,d){
    var h = document.getElementById(id + '-ddheader');
    var c = document.getElementById(id + '-ddcontent');
    clearInterval(c.timer);
    if(d == 1){
	clearTimeout(h.timer);
	if(c.maxh && c.maxh <= c.offsetHeight){return}
	else if(!c.maxh){
	    c.style.display = 'block';
	    c.style.height = 'auto';
	    c.maxh = c.offsetHeight;
	    c.style.height = '0px';
	}
	c.timer = setInterval(function(){ddSlide(c,1)},DDTIMER);
    }else{
	h.timer = setTimeout(function(){ddCollapse(c)},50);
    }
}

// collapse the menu //
function ddCollapse(c){
    c.timer = setInterval(function(){ddSlide(c,-1)},DDTIMER);
}

// cancel the collapse if a user rolls over the dropdown //
function cancelHide(id){
    var h = document.getElementById(id + '-ddheader');
    var c = document.getElementById(id + '-ddcontent');
    clearTimeout(h.timer);
    clearInterval(c.timer);
    if(c.offsetHeight < c.maxh){
	c.timer = setInterval(function(){ddSlide(c,1)},DDTIMER);
    }
}

// incrementally expand/contract the dropdown and change the opacity //
function ddSlide(c,d){
    var currh = c.offsetHeight;
    var dist;
    if(d == 1){
	dist = (Math.round((c.maxh - currh) / DDSPEED));
    }else{
	dist = (Math.round(currh / DDSPEED));
    }
    if(dist <= 1 && d == 1){
	dist = 1;
    }
    c.style.height = currh + (dist * d) + 'px';
    c.style.opacity = currh / c.maxh;
    c.style.filter = 'alpha(opacity=' + (currh * 100 / c.maxh) + ')';
    if((currh < 2 && d != 1) || (currh > (c.maxh - 2) && d == 1)){
	clearInterval(c.timer);
    }
}