var swfobject = 0;

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_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_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 MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function findPosY(obj)
  {
    var curtop = 0;
    if(obj.offsetParent)
        while(1)
        {
          curtop += obj.offsetTop;
          if(!obj.offsetParent)
            break;
          obj = obj.offsetParent;
        }
    else if(obj.y)
        curtop += obj.y;
    return curtop;
  }
  
function findPos(obj) {
	var curleft = curtop = 0;
	if (obj.offsetParent) {
		do {
			curleft += obj.offsetLeft;
			curtop += obj.offsetTop;
		    
			} while (obj = obj.offsetParent);
				return [curleft,curtop];
}


	
	
}

function positionDivCenter() {

	var bbla = document.getElementById("vinyl_siding_maryland_virginia_dc");
	var myOffsets=findPos(document.getElementById("vinyl_siding_maryland_virginia_dc"));
	 
	apDiv1.style.left = 650+myOffsets[1]+"px";
}

function heightFixer () {
    var windowheight = window.screen.height;
	var myContainerDiv = document.getElementById('middleColumn');
	var myContainerDivHeight = myContainerDiv.offsetHeight + 'px';
	var myLeftNavDiv = document.getElementById('leftColumn');
	var myRightNavDiv = document.getElementById('rightColumn');
	var footerDiv = document.getElementById('replacement_windows_footer');
	var footerPosition= findPosY(myContainerDiv)-200 ;
	var footerPositionPix=footerPosition + 'px';
	myLeftNavDiv.style.height = myContainerDivHeight; 
	myRightNavDiv.style.height = myContainerDivHeight;
	footerDiv.style.top = footerPositionPix;
	 
	 
	
}

function toggleLayer( whichLayer ){  
	var elem, vis; 
	if( document.getElementById ) 
     elem = document.getElementById( whichLayer );  
    else if( document.all ) 
    elem = document.all[whichLayer]; 
 else if( document.layers ) 
 elem = document.layers[whichLayer];  
vis = elem.style;     
if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)    
vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';  
vis.display = (vis.display==''||vis.display=='block')?'none':'block';
}