function $(theBtnId) //get element by ID shortcut
{
	return document.getElementById(theBtnId);
}
window.onload = function()
{
	if ($('CSMenu')) // Case studies expanding menu
	{
		theMenuLinks = $('CSMenu').getElementsByTagName('h4');
		for(var i=0; i<theMenuLinks.length; i++)
		{
			theMenuLinks[i].getElementsByTagName('a')[0].id = i; // set the id for use by the function
			theMenuLinks[i].getElementsByTagName('a')[0].onclick = function()
			{
				theULitems = $('CSMenu').getElementsByTagName('ul');
				for(var j=0; j<theULitems.length; j++)
				{
					theULitems[j].style.display = (j == this.id) ? "block" : "none";
				}
				return false;
			}
		}
	} // Case studies expanding menu

} // window onload

//inport close menu css file - sets menu state if javascript is enabled
document.write('<link href="http://www.triton-chemicals.co.uk/casemnu.css" rel="stylesheet" title="Default" type="text/css" media="screen" />');