function winopen(tlink,w,h)
{
    var DCIP=window.open(""+tlink+"","newsWindow","toolbar=no,scrollbars=yes,fullscreen=no,menubar=no,titlebar=no,directories=no,resizable=yes,status=no,fullscreen=no,top=0,left=0,width="+w+",height="+h+"");
    DCIP.focus();
} 

function changeImage(url)
{  
    document.getElementById("chart").src=url;
}