function show_list_display_item(list_display_item, namePrefix) {
	var name_parts = list_display_item.id.split("_");
	var item_num = name_parts[name_parts.length-1];
 
	list_display_item.className = namePrefix+"-list-display-item-hover "+namePrefix+"-list-display-item-hover-"+item_num;
 
	var ld_hover_container = document.getElementById(namePrefix+"_list_display_hover_container");
	var ld_hover = document.getElementById(namePrefix+"_list_display_hover_"+item_num);
	var offsets = getOffsetTopAndLeft(list_display_item);
	ld_hover_container.style.top = offsets["top"];
	ld_hover_container.style.left = offsets["left"] + list_display_item.offsetWidth;
	ld_hover_container.style.zIndex = 900;
	ld_hover_container.style.display = "inline";
	ld_hover.style.display = "inline";
	ld_hover.style.zIndex = 901;
}

function hide_list_display_item(list_display_item, namePrefix) {
	var name_parts = list_display_item.id.split("_");
	var item_num = name_parts[name_parts.length-1];
	
	list_display_item.className = namePrefix+"-list-display-item "+namePrefix+"-list-display-item-"+item_num;
	
	var ld_hover_container = document.getElementById(namePrefix+"_list_display_hover_container");
	var ld_hover = document.getElementById(namePrefix+"_list_display_hover_"+item_num);
	ld_hover.style.display = "none";
	ld_hover_container.style.display = "none";
	ld_hover.style.zIndex = 0;
}