// if(document.getElementsById) {
// 	function sidebar(a)
// 	{
// 		var op = document.getElementById(a);
// 		op.style.display = 'block';
// 	}
// }


	function sidebars(a)
	{
		var op = document.getElementById(a);
		if(op.currentStyle) {
			var ox = op.currentStyle['display'];
			if(ox == 'hidden') {
				op.style.display = 'block';
			}
		} else if(op.currentStyle) {
			var ox = op.currentStyle['display'];
			if(ox == 'block') {
				op.style.display = 'hidden';
			}
		} else if(window.getComputedStyle) {
			var ox = document.defaultView.getComputedStyle(op,null).getPropertyValue('display');
			if(ox == 'hidden') {
				op.style.display = 'block';
			}
		} else if(window.getComputedStyle) {
			var ox = document.defaultView.getComputedStyle(op,null).getPropertyValue('display');
			if(ox == 'block') {
				op.style.display = 'hidden';
			}
		}
	}


var TOCstate = 'none';

function sidebar(a) {
	TOCstate = (TOCstate == 'none') ? 'block' : 'none';
	document.getElementById(a).style.display = TOCstate;
}