function popup(pagename) 
    {     
    var page = "d_" + pagename + ".html";
    window.open(page,'definition','width=450,height=300');
    } 

    function imgpop(file, w, h) 
    {         
    var width = 'width=' + w;
    var height = 'height=' + h;
    window.open(file,'definition','width=800,height=600');
    } 

//window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=800,height=600,left = 240,top = 100');");