function openurl(a,b){
	url='showpopup.aspx?img='+a+'&subtitle='+b;
	//alert(url);
	window.open(url,null,'width=767,height=600,status=no,toolbar=no,menubar=no,location=no,scrollbars=yes');
}

function showDialog(url, width, height)
{
    return showWindow(url, false, false, false, false, false, false, true, true, width, height, 0, 0);
}

function showWindow(url, isStatus, isResizeable, isScrollbars, isToolbar, isLocation, isFullscreen, isTitlebar, isCentered, width, height, top, left)
{
    if (isCentered)
    {
        top = (screen.height - height) / 2;
        left = (screen.width - width) / 2;
    }

    open(url, '_blank', 'status=' + (isStatus ? 'yes' : 'no') + ','
    + 'resizable=' + (isResizeable ? 'yes' : 'no') + ','
    + 'scrollbars=' + (isScrollbars ? 'yes' : 'no') + ','
    + 'toolbar=' + (isToolbar ? 'yes' : 'no') + ','
    + 'location=' + (isLocation ? 'yes' : 'no') + ','
    + 'fullscreen=' + (isFullscreen ? 'yes' : 'no') + ','
    + 'titlebar=' + (isTitlebar ? 'yes' : 'no') + ','
    + 'height=' + height + ',' + 'width=' + width + ','
    + 'top=' + top + ',' + 'left=' + left);
}