lastF = '';
lastFid = '';
portArray=new Array("landscape","poolscapes","driveways","masonry","waterfalls","walkways","walls");

function portShow(f)
{
 
	if(lastF != f)
	{
		i=1;
		founditem = 0;
		while(obj = document.getElementById("pnav"+i))
		{
			objStyle = obj.style;
			objStyle.backgroundPosition  = '0 0';
			if(portArray[i-1] == f)
			{
				lastF = f;
				lastFid = i;
			}
			i++;
		}
		if(obj = document.getElementById("pnav"+lastFid))
		{
			objStyle = obj.style;
			objStyle.backgroundPosition  = '0 -23px';
			i++;
		}
		
	}
	
	
	 
	sndReq('portShow','1&f='+f);
	
}

function swapThumbs(f,s)
{
	 
	sndReq('portShow','1&f='+f+'&s='+s);
}


function swapPort(f,i)
{
	sndReq('swapPort','1&theDiv=picture_frame4&f='+f+'&i='+i);
}

function swapGD(n)
{
	i=1;
	while(obj = document.getElementById("pd_"+i))
	{
		objStyle = obj.style;
		objStyle.display = 'none';
		
		if(objImg = document.getElementById("pdim_"+i))
		{
			objStyle = objImg.style;
			objStyle.display = 'none';	
		}	
		i++;
	}
	
	if(obj = document.getElementById("pd_"+n))
	{
		objStyle = obj.style;
		objStyle.display = 'block';
		
		if(objImg = document.getElementById("pdim_"+n))
		{
			objStyle = objImg.style;
			objStyle.display = 'block';	
		}	
	}	
}



function swapBox(n)
{
	i=1;
	while(obj = document.getElementById("box_"+i))
	{
		objStyle = obj.style;
		objStyle.display = 'none';
		i++;
	}
	
	if(obj = document.getElementById("box_"+n))
	{
		objStyle = obj.style;
		objStyle.display = 'block';
	}	
}