var agt = navigator.userAgent.toLowerCase();
var is_major = parseInt(navigator.appVersion);
var is_minor = parseFloat(navigator.appVersion);
var is_nav = ((agt.indexOf('mozilla') != -1) && (agt.indexOf('spoofer') == -1)
              && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera') == -1)
              && (agt.indexOf('webtv') == -1));
var is_nav3up = (is_nav && (is_major >= 3));
var is_ie = (agt.indexOf('msie') != -1);
var is_ie4up = (is_ie && (is_major >= 4));
var hoverok = (is_nav3up || is_ie4up);

if (document.images) {
	arImgSrc = new Array ("mnews_0", "mtown_0", "mstructure_0", "mdocuments_0", "minvest_0", "mforum_0", "mfederal_0", "mnprojects_0", "mprojects_0", "mmorder_0", "mbusiness_0", "mproperty_0", "mreception_0", "mtourism_0", "mreforma_0",
	 "mnews_1", "mtown_1", "mstructure_1", "mdocuments_1", "minvest_1", "mforum_1", "mfederal_1", "mnprojects_1", "mprojects_1", "mmorder_1", "mbusiness_1", "mproperty_1", "mreception_1", "mtourism_1", "mreforma_1",
	 "mnews_2", "mtown_2", "mstructure_2", "mdocuments_2", "minvest_2", "mforum_2", "mfederal_2", "mnprojects_2", "mprojects_2", "mmorder_2", "mbusiness_2", "mproperty_2", "mreception_2", "mtourism_2", "mreforma_2");
	arImgLst = new Array ();
	for (i in arImgSrc) {
		arImgLst[i] = new Image ();
		arImgLst[i].src = "/img/" + arImgSrc[i] + ".gif";
	}
}

function hoverbt(imName, over) {
 if (hoverok) {
  var theImage = FindImage(document, imName, 0);
  if (theImage) {
  	imHL = imName + "_1";
   imBL = imName + "_0";
  	theImage.src = "/img/" + (over ? imHL : imBL) + ".gif";
  }
 }
}

function FindImage(doc, name, j) {
 var theImage = false;
 if (doc.images) {
  theImage = doc.images[name];
 }
 if (theImage) {
  return theImage;
 }
 if (doc.layers) {
  for (j = 0; j < doc.layers.length; j++) {
   theImage = FindImage(doc.layers[j].document, name, 0);
   if (theImage) {
    return (theImage);
   }
  }
 }
 return (false);
}

function makeSpace(axis,delta1,delta2) {
 var NS4 = (navigator.appName.indexOf("Netscape")>=0 && !document.getElementById)? true : false;
 var IE4 = (document.all && !document.getElementById)? true : false;
 var IE5 = (document.getElementById && document.all)? true : false;
 var NS6 = (document.getElementById && navigator.appName.indexOf("Netscape")>=0 )? true: false;
 var W3C = (document.getElementById)? true : false;
 var w_y, w_x;
 w_y=(NS4||NS6)? window.innerHeight : (IE5||IE4)? document.body.clientHeight : 0;
 w_x=(NS4||NS6)? window.innerWidth - 18 : (IE5||IE4)? document.body.clientWidth : 0;
 
 if (axis=='x' && w_x > 0) {
  var space = w_x - delta1;
  if (space > 0) {
   document.write("<img src='/img/_tr.gif' width='" + space + "' height='" + delta2 + "' alt=''>");
  }
 }
 if (axis=='y' && w_y > 0) {
  var space = w_y - delta1;
  if (space > 0) {
   document.write("<img src='/img/_tr.gif' width='" + delta2 + "' height='" + space + "' alt=''>");
  }
 }
}