var dato = new Date();

function makeWindow(file,width,height) {
	top.myWindow = window.open(file,"newWindow"+dato.getMilliseconds(),centerDialog(width,height));
}//showDialog

function centerDialog(width,height) {
    var properties;

    if(navigator.appName == "Microsoft Internet Explorer") {
        var startY = (self.screenTop + (top.document.body.clientHeight/2) - (height/2)) -20;
        var startX = self.screenLeft + (top.document.body.clientWidth/2) - (width/2);
        properties = "width="+width+",height="+height+",left="+startX+",top="+startY+",toolbar=0,status=0,menubar=0,scrollbars=yes,resizable=yes";
    }//if

    else {
        var startX = window.screenX + (window.outerWidth/2) - (width/2);
        var startY = (window.screenY + (window.outerHeight/2) - (height/2));
        properties = "width="+width+",height="+height+",screenX="+startX+",screenY="+startY+",toolbar=0,status=0,menubar=0,scrollbars=yes,resizable=yes";
    }//else

    return properties;

}//centerDialog