function helpwindow(url) {
    var win = popupWindow(url, "helpWin", 420, 450, "toolbar=no,scrollbars=yes,location=no");
}
function infowindow(url, width) {
    var win = popupWindow(url, "helpWin", width, 400, "toolbar=no,scrollbars=yes,location=no,resizable=yes");
}
function resources(url, width) {
    var win = popupWindow(url, "resourceWin", width, 500, "toolbar=no,scrollbars=yes,location=no,resizable=yes");
}
function titlewindow(url) {
    var win = popupWindow(url, "helpWin", 300, 230, "toolbar=no,scrollbars=yes,location=no");
} 
function smallwindow(url) {
    var win = popupWindow(url, "helpWin", 330, 200, "toolbar=no,scrollbars=yes,location=no");
} 
function graphwindow(url) {
    var win = popupWindow(url, "graphWin", 520, 270, "toolbar=no,scrollbars=no,location=no,menubar=no,titlebar=no");
}
function compressedsearchwindow(url) {
    var win = popupWindow(url, "helpWin", 600, 400, "toolbar=no,scrollbars=yes,location=no,directories=no,status=no,menubar=no,resizable=yes");
}
function relatedwindow(url) {
    var win = popupWindow(url, "helpWin", 350, 330, "toolbar=no,scrollbars=yes,location=no");
}
function trialwindow(url) {
    var win = popupWindow(url, "helpWin", 500, 400, "toolbar=no,scrollbars=yes,location=no");
} 
function importwindow(url) {
    var win = popupWindow(url, "helpWin", 300, 470, "toolbar=no,scrollbars=yes,location=no,status=no,menubar=yes");
}
function smallwindow(url) {
    var win = popupWindow(url,"helpWin", 330, 200, "toolbar=no,scrollbars=yes,location=no,resize=yes");
}
function popupwindow(url) {
    var win = popupWindow(url, "helpWin", 350, 510, "toolbar=no,scrollbars=no,location=no");
}
function smallpopupwindow(url) {
    var win = popupWindow(url, "helpWin", 305, 250, "toolbar=no,scrollbars=no,location=no");
}
function supportwindow(url) {
    var win = popupWindow(url, "helpWin", 670, 520, "toolbar=yes,scrollbars=yes,location=no,resizable=yes");
}
function resizewindow(url,width,height) {
    var win = popupWindow(url, "helpWin", width, height, "toolbar=no,scrollbars=yes,location=no");
} 
function emailwindow(url) {
    var win = popupWindow(url, "helpWin", 550, 500, "toolbar=yes,scrollbars=yes,location=no");
}
function open_screenshots(url) {
    var win = popupWindow(url, "screenshots", 650, 500, "toolbar=yes,scrollbars=yes,location=no");
    if (!win.opener) win.opener = self;
    return false;
}

function popupWindow(url, name, width, height, attributes) {
    if(!width || width=="" || width == null) width = 400;
    if(!height || height=="" || height == null) height = 500;
    
    if(width > screen.width) width = screen.width - (screen.width*0.2);
    if(height > screen.height) height = screen.height - (screen.height*0.2);
    
    var left = (screen.width - width) / 2;
    var top = (screen.height - height) / 2;
    
    var win = window.open(url, name, "width=" + width + ",height=" + height + ",left=" + left + ",top=" + top + "," + attributes);
    if(win && win.focus) win.focus();
    
    return false;
}