function popUp(img) {
if(window.screen) {
var x=Math.floor((screen.availWidth-300)/2);
var y=Math.floor((screen.availHeight-510)/2);
var winspecs="width=400,height=440,left=" + x + ",top=" + y + ",scrollbars=0,resizeable=0";
pop = window.open("","pop",winspecs);
}
else pop = window.open("","pop","height=440,width=400,scrollbars=0,resizeable=0");
pop.document.writeln('Original art work by Karen Wallace');
pop.document.writeln('