var image1 = new Image();
image1.src = "./ciulimg/maps/asia_pacific.gif";
var image2 = new Image();
image2.src = "./ciulimg/maps/oceania.gif";
var image3 = new Image();
image3.src = "./ciulimg/maps/middle_east.gif";
var image4 = new Image();
image4.src = "./ciulimg/maps/africa.gif";
var image6 = new Image();
image6.src = "./ciulimg/maps/central_europe.gif";
var image8 = new Image();
image8.src = "./ciulimg/maps/western_europe.gif";
var image10 = new Image();
image10.src = "./ciulimg/maps/north_america.gif";
var image11 = new Image();
image11.src = "./ciulimg/maps/south_america.gif";

var regionArray=new Array("central_europe", "asia_pacific", "oceania", "middle_east", "africa", "western_europe", "north_america", "south_america");

function showList(listToDisplay) {
	for (var i = 0; i < regionArray.length; ++i) {
		var elem, regElem, temp_reg, imgsrc;

		temp_reg = "reg_" + regionArray[i];
		elem = getObject(regionArray[i]);
		regElem = getObject(temp_reg);
		imgsrc = "./img/maps/" + listToDisplay + ".gif";

		if (regionArray[i] == listToDisplay){
			elem.style.display = "block";
			regElem.className = "regionLinkSel";
			replaceImage(imgsrc);
			regElem.blur();
		} else {
			elem.style.display = "none";
			regElem.className = "regionLink";
		}
	}
	//exceptions due to broken lists
	var blockB;
	if (listToDisplay == "western_europe") {
		blockB = getObject("western_europeB");
		blockB.style.display = "block";
	} else {
		blockB = getObject("western_europeB");
		blockB.style.display = "none";
	}
	if (listToDisplay == "central_europe") {
		blockB = getObject("central_europeB");
		blockB.style.display = "block";
	} else {
		blockB = getObject("central_europeB");
		blockB.style.display = "none";
	}
}

function hideAll() {
	for(var i = 0; i < regionArray.length; i++) {
		var elem;
		elem = getObject(regionArray[i]);
		elem.style.display = "none";
	}
	var cen2 = getObject("central_europeB");
	cen2.style.display = "none"
	var west2 = getObject("western_europeB");
	west2.style.display = "none"

}

function replaceImage(img_src) {
	document.mapImage.src = img_src;
}