var folder = "http://sapporo-seitai.net/common/images/";
var i;
var tabLen = 2;
var start;
var len;
	
function caseSwitch(sel) {
	
	var selFix = "map"+sel;
	var selImg = "tab"+sel;
	var selImgC = folder+"tab_00"+sel+"_ov.gif";
	
	start = 1;
	len = tabLen;
	for(i=start; i<start+len; i++){
		document.getElementById("map"+i).style.display = "none";
		document.getElementById("tab"+i).src = folder+"tab_00"+i+".gif";
	}
	document.getElementById(selFix).style.display = "block";
	document.getElementById(selImg).src = selImgC;


}

var tabLen2 = 10;

function caseSwitch2(sel) {
	
	var selFix = "area"+sel;
	var selImg = "area_tab"+sel;
	var selImgC = folder+"area_tab_00"+sel+"_ov.gif";
	
	start = 0;
	len = tabLen2;
	for(i=start; i<start+len; i++){
		document.getElementById("area"+i).style.display = "none";
		document.getElementById("area_tab"+i).src = folder+"area_tab_00"+i+".gif";
	}
	document.getElementById(selFix).style.display = "block";
	document.getElementById(selImg).src = selImgC;


}