function bigimage(addr,x,y)
{
var baddr=addr;
var be=new String(baddr);

baddr=be.slice(0,be.length-4)+""+be.slice(be.length-4,be.length)
be=be.slice(9,be.length-4);

var bwidth=x+20;
var bheight=y+30;
var btop=screen.height/2-bheight/2;
var bleft=screen.width/2-bwidth/2;

var wnd=window.open(baddr,be,"top="+btop+",left="+bleft+",width="+bwidth+",height="+bheight+",resizable=1,toolbar=0,status=0,location=0,menubar=0");
}