function showPicture(picref) {
var host = window.location.host;
//var picref = picref;
var xOffset = (screen.width-600)/2
var yOffset = (screen.height-500)/2

var windowprops = "height=500,width=620,top="+yOffset+",left="+xOffset+", location=no, toolbar=no, menubar=no," +
	 "scrollbars=no, directories=no,resizable=yes";
var newWindow = window.open("http://www.tonytodd.com/heat/tt.nsf/" + picref + "?OpenImageResource","secondary_window",windowprops)
}