// CODE FOR PLUS & MINUS SYMBOLS - JavaScript

function swap(obj) {
var img = obj.getElementsByTagName('img')[0];
if(document.getElementById) {
img.src = (img.src.indexOf("plus.gif") != -1) ? "/images/filter/minus.gif" : "/images/filter/plus.gif";
}
return false;
} 
// CODE FOR ARROW UP & ARROW DOWN SYMBOLS
function swap(obj) {
var img = obj.getElementsByTagName('img')[0];
if(document.getElementById) {
img.src = (img.src.indexOf("plus.gif") != -1) ? "/images/filter/minus.gif" : "/images/filter/plus.gif";
}
return false;
} 

// SHOW HIDE DESCRIPTIONS FUNCTION
function closeall()
{
var divs=document.getElementsByTagName('div')
for(var i=0; i<divs.length; i++)
divs[i].style.display='none';
}
function clicked(element)
{
var div=document.getElementById(element)
if(div.style.display=='none')
div.style.display='block';
//div.style.visibility='visible';
else
div.style.display='none';
return;
}