var newWindow
var URL
var winName
var wide
var high


function openWin (URL, winName, wide, high){
    
    mainsrc = URL
    w = wide
    h = high
    LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
    TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
    settings = 'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars=no,resize=yes,toolbar=no,status=no,menubar=no'
    newWindow=window.open(URL, winName, settings);
    newWindow.focus();
    }