function show_city_head(params) {
	var p = '';
	var height=128;
	if(params)
		p = params;
    var s = "<iframe id='iframe_tonglan_1' name='iframe_tonglan_1' src='" + outerUrl + "head.html"+p+"' width='100%' height='" + height + "' frameborder='0' border='0' marginwidth='0' marginheight='0' scrolling='no' ></iframe>";
    document.write(s);

}

function show_city_foot(params) {
	var p = '';
	var height=128;
	if(params)
		p = params;
    var s = "<iframe id='iframe_tonglan_1' name='iframe_tonglan_1' src='" + outerUrl + "foot.html"+p+"' width='100%' height='" + height + "' frameborder='0' border='0' marginwidth='0' marginheight='0' scrolling='no' ></iframe>";
    document.write(s);
}