// ----------------------- *** Browser check *** ----------------------------- //
	isDOM=document.getElementById; //DOM1 browser (MSIE 5+, Netscape 6, Opera 5+)
	isOpera=isOpera5=window.opera && isDOM; //Opera 5+
	isOpera6=isOpera && window.print; //Opera 6+
	isOpera7=isOpera && document.readyState; //Opera 7+
	isMSIE=document.all && document.all.item && !isOpera; //Microsoft Internet Explorer 4+
	isMSIE5=isDOM && isMSIE; //MSIE 5+
	isNetscape4=document.layers; //Netscape 4.*
	isMozilla=isDOM && navigator.appName=="Netscape"; //Mozilla or Netscape 6.*
// ----------------------- *** Browser check *** ----------------------------- //

function addHandler(object, event, handler)
{
  if (typeof object.addEventListener != 'undefined')
    object.addEventListener(event, handler, false);
  else if (typeof object.attachEvent != 'undefined')
    object.attachEvent('on' + event, handler);
  else
    throw "Incompatible browser";
}

function removeHandler(object, event, handler)
{
  if (typeof object.removeEventListener != 'undefined')
    object.removeEventListener(event, handler, false);
  else if (typeof object.detachEvent != 'undefined')
    object.detachEvent('on' + event, handler);
  else
    throw "Incompatible browser";
}

function open_preview(img)
{
    window.open ("/preview.php?it=1&img="+img, "preview_popup", "menubar=0,scrollbars=1,resizable=0,width=750,height=550"); 
}
function preview_img(img)
{
    window.open ("/preview.php?it=2&img="+img, "preview_popup", "menubar=0,scrollbars=1,resizable=0,width=750,height=550"); 
}
function preview_img_l(img)
{
    window.open ("/preview.php?it=3&img="+img, "preview_popup", "menubar=0,scrollbars=1,resizable=0,width=750,height=550"); 
}

function hideRow(id) {
	document.getElementById(id).style.display = 'none';
}
function showRow(id) {
	if(!isMSIE)
	{
		document.getElementById(id).style.display = 'table-row';
	}
	else
	{
		document.getElementById(id).style.display = 'block';
	}	
}

function changeRealtyType(id) {
	var oType = document.getElementById(id).options[document.getElementById(id).selectedIndex].value;
	
	if(oType==1 || oType==2 || oType==5 || oType==6)
	{
		hideRow('is_area_territory');
		
		showRow('is_rooms');
		showRow('is_area_total');
		showRow('is_area_live');
		showRow('is_area_kitchen');
		showRow('is_floor');
		showRow('is_floor_total');
		showRow('is_walls');
	}
	else if(oType==3)
	{
		hideRow('is_floor');
		
		showRow('is_rooms');
		showRow('is_area_total');
		showRow('is_area_live');
		showRow('is_area_kitchen');
		showRow('is_area_territory');
		showRow('is_floor_total');
		showRow('is_walls');
	}
	else if(oType==4)
	{
		hideRow('is_rooms');
		hideRow('is_area_total');
		hideRow('is_area_live');
		hideRow('is_area_kitchen');
		hideRow('is_floor');
		hideRow('is_floor_total');
		hideRow('is_walls');
		
		showRow('is_area_territory');
	}
	else
	{
		showRow('is_rooms');
		showRow('is_area_total');
		showRow('is_area_live');
		showRow('is_area_kitchen');
		showRow('is_area_territory');
		showRow('is_floor');
		showRow('is_floor_total');
		showRow('is_walls');
	}
}