function preloadImages()
{
  var overImg = new Array();
  overImg[0] = new Image();
  overImg[1] = new Image();
  overImg[2] = new Image();
  overImg[3] = new Image();

  overImg[0].src = "images/tab_home_ovr.gif";
  overImg[1].src = "images/tab_flats_ovr.gif";
  overImg[2].src = "images/tab_prices_ovr.gif";
  overImg[3].src = "images/tab_contact_ovr.gif";
}

function swapImg(imgName)
{
   var obj, objStr;
   var imgSrc;
   if(document.images)
   {
      objStr = "document." + imgName;
	  imgSrc = "images/tab_" + imgName + "_ovr.gif";
	  obj = eval(objStr);
	  obj.src = imgSrc;
	}
}
	  
function restoreImg(imgName)
{
  var obj, objStr;
   var imgSrc;
   if(document.images)
   {
      objStr = "document." + imgName;
	  imgSrc = "images/tab_" + imgName + "_des.gif";
	  obj = eval(objStr);
	  obj.src = imgSrc;
	}
}

function OpenWindow(htmlpage, height, width)
{
  var strParam  = "scrollbars=no,menubar=no,HEIGHT="+height+",WIDTH="+width
  //var newWindow = window.open(htmlpage,"newWindow","scrollbars=no,menubar=no,HEIGHT=250,WIDTH=600");
  var newWindow = window.open(htmlpage,"newWindow",strParam);
  //open();
}

function OpenPicture(picfile, pictitle)
{
  var newWindow = window.open(picfile,"newWindow","scrollbars=no,menubar=no,HEIGHT=250,WIDTH=600");
  newWindow.document.title = pictitle;
  //open();
}