// JavaScript Document

function swap(img_name, img_src)
{
   document[img_name].src = img_src;
}

function pop(url,windowname)
{
	window.open(url,windowname,"resizable=yes,toolbar=no,scrollbars=yes,menubar=no,status=no,directories=no,width="+screen.width+",height="+screen.height+"");
}

function popup(url,windowname,w,h)
{
	window.open(url,windowname,"resizable=no,toolbar=no,scrollbars=no,menubar=no,status=no,directories=no,width="+w+",height="+h+"");
}

function popupCenter(url,windowname,w,h) 
{
	leftPos = 0
	topPos = 0
	if (screen) 
	{
		leftPos = (screen.width / 2) - 350
		topPos = (screen.height / 2) - 600
	}
	window.open(url,windowname,"resizable=no,toolbar=no,scrollbars=no,menubar=no,status=no,directories=no,width="+w+",height="+h+",left="+leftPos+",top="+topPos+"");
}