function display(coverart, nm) {
var w = 800;
var h = 600;
var winl = Math.floor((screen.width - w) / 2);
var wint = Math.floor((screen.height - h) / 2);
	var cover_win = window.open(coverart, nm, "Width="+w+",Height="+h+",Menubar=no,Toolbar=no,Status=no,Scrollbars=yes,Resizable=no,titlebar=0,Top="+wint+",Left="+winl+"");
}

function display1(coverart, nm) {
var w = 600;
var h = 600;
var winl = Math.floor((screen.width - w) / 2);
var wint = Math.floor((screen.height - h) / 2);
	var cover_win = window.open(coverart, nm, "Width="+w+",Height="+h+",Menubar=no,Toolbar=no,Status=no,Scrollbars=no,Resizable=no,titlebar=0,Top="+wint+",Left="+winl+"");
}

function display2(coverart, nm) {
var w = 600;
var h = 470;
var winl = Math.floor((screen.width - w) / 2);
var wint = Math.floor((screen.height - h) / 2);
	var cover_win = window.open(coverart, nm, "Width="+w+",Height="+h+",Menubar=no,Toolbar=no,Status=no,Scrollbars=no,Resizable=no,titlebar=0,Top="+wint+",Left="+winl+"");
}

function display3(coverart, nm) {
var w = 320;
var h = 240;
var winl = Math.floor((screen.width - w) / 2);
var wint = Math.floor((screen.height - h) / 2);
	var cover_win = window.open(coverart, nm, "Width="+w+",Height="+h+",Menubar=no,Toolbar=no,Status=no,Scrollbars=no,Resizable=no,titlebar=0,Top="+wint+",Left="+winl+"");
}