<!--
//start itemVis
var validDHTML = '';
function getProblemObj(name){
	if (document.getElementById){// DOM level 1 browsers: IE 5+, NN 6+
		if(!document.getElementById(name)){
			return;
		}
		this.obj = document.getElementById(name);
		this.style = document.getElementById(name).style;
	}
	else if (document.all){// IE 4
		if(!document.all[name]){
			return;
		}
		this.obj = document.all[name];
		this.style = document.all[name].style;
	}
	else if (document.layers){// NN 4
		if(!document.layers[name]){
			return;
		}
		this.obj = document.layers[name];
		this.style = document.layers[name];
	}
}
//makes the item visible
function showccdItem(visiblechunk){
	
	validDHTML = (document.getElementById || document.all || document.layers);
	if (!validDHTML){
		alert ('Your browser can\'t display this item.  It\'s time for an upgrade.');
		return;
	}
	var displayeditem = new getProblemObj(visiblechunk);
	if(displayeditem.style){
		with (displayeditem.style){
			visibility = "visible";
			display = "block";
		}
	}
}
//makes the item invisible
function hideccdItem(visiblechunk){
	validDHTML = (document.getElementById || document.all || document.layers);
	if (!validDHTML){
		return;
	}
	var displayeditem = new getProblemObj(visiblechunk);
	if(displayeditem.style){
		with (displayeditem.style){
			visibility = "hidden";
			display = "none";
		}
	}
}

document.write("<style>");
document.write(".sliderbox {visibility:hidden;}");
document.write(".sliderbox {display:none;}");
document.write("</style>");
document.close();
//end itemVis
// -->