function app_main() {
	var intMapScale = 10000;

	showMapFrame();
	top.map.setMouseMode("selection");
 	top.map.openJSGIXML(G_BASE_URL+G_JSGI_FILE,intMapScale);

	top.map.setMapCenter(131.60731,  33.239, intMapScale);
		
//	top.map.enablePopup(1);
	top.map.createXY();
	top.map.createScaleBar();
	top.map.openMap();

	show_centerPoint();
	
	top.map.event("selection","top.selection");
	
	showLayer(G_LAYERS [0]);

}

function initLayer() {
	var i;
	var flg = "off";
	
	for( i = 0; i < G_LAYERS.length; i++) {
		top.map.displayLayer("xml."+G_NAME_BASE+"."+G_LAYERS[i]+".点",flg);
		top.map.displayLayer("xml."+G_NAME_BASE+"."+G_LAYERS[i]+".注記",flg);
	}
		
}

function showMapFrame() {
	top.map.tcl("gui update");

}


//中央を示す十字を表示
function show_centerPoint() {
	var intMapWidth, intMapHeight;
	var intMapCenterX, intMapCenterY, intPointLength = 30;
	var strPointerX1, strPointerX2;
	var strPointerX2, strPointerY2;
	var tmp;
	
	// Frameのwidth,heightアトリビュートが設定されている場合
//	intMapWidth = document.getElementById('map').getAttribute("width");
//	intMapHeight = document.getElementById('map').getAttribute("height");
	
	// Frameのstyleアトリビュートに、[数字pt]という形式で格納されていることが前提
	tmp = document.getElementById('map').style.width
    intMapWidth = tmp.substr(0,tmp.length-2)*1;
    	tmp = document.getElementById('map').style.height
    intMapHeight =tmp.substr(0,tmp.length-2)*1;;

	intMapCenterX = intMapWidth / 2;
	intMapCenterY = intMapHeight / 2;

	strPointerX1 = intMapCenterX + " " + (intMapCenterY + intPointLength);
	strPointerY1 = intMapCenterX + " " + (intMapCenterY - intPointLength);
	
	strPointerX2 = (intMapCenterX  + intPointLength) + " " + intMapCenterY;
	strPointerY2 = (intMapCenterX - intPointLength) + " " + intMapCenterY;


    top.map.draw_group("pointer");
	top.map.draw_xyunit('screen');
	top.map.draw_level('all');
	top.map.draw_width(2);
	top.map.draw_color(255,0,0);
	top.map.draw_line([strPointerX1, strPointerY1]);
	top.map.draw_line([strPointerX2, strPointerY2]);
	top.map.draw_circle(intMapCenterX, intMapCenterY, intPointLength /3);
}