function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i]; }}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function redirect(url,sessionID,language,pageID,special,specialID) {
	var date = new Date();
	date.setTime(date.getTime()+(30*60*1000)); // 30 minutes to expiration
	var expires = "; expires="+date.toGMTString();
	var value = 'id:'+sessionID+'|l:'+language+'|pid:'+pageID+'|s:'+special+'|sid:'+specialID;
	document.cookie = "DRDC_Session="+value+expires+"; path=/";
	document.location = url;
}

function edit_location( c, x, y ) {
	//alert("Edit location of center "+c+" currently as ("+x+", "+y+") as user "+sid);
	var data = new Array(c, x, y);
	var loc = window.showModalDialog('../dialogs/edit_location.php?p='+p+'&c='+c+'&l='+l+'&sid='+sid,data,'center:yes;scroll:no;dialogWidth:460px;dialogHeight:460px');
	if (loc) {
		document.getElementById('centre_loc_x').value = loc[0];
		document.getElementById('centre_loc_y').value = loc[1];
	}
}

function getMapX()
{
	var obj = document.images['map'];

	var curleft = 0;
	if (obj.offsetParent)
	{
		while (obj.offsetParent)
		{
			curleft += obj.offsetLeft
			obj = obj.offsetParent;
		}
	}
	else if (obj.x)
		curleft += obj.x;
	return curleft;
}

function getMapY()
{
	var obj = document.images['map'];

	var curtop = 0;
	if (obj.offsetParent)
	{
		while (obj.offsetParent)
		{
			curtop += obj.offsetTop
			obj = obj.offsetParent;
		}
	}
	else if (obj.y)
		curtop += obj.y;
	return curtop;
}

function displayName(s) {
	document.getElementById('title').innerHTML = unescape(s);
}