function popup(mylink, windowname, parameters)
	{
	if (! window.focus)return true;
	var href;
	if (typeof(mylink) == 'string')
	   href=mylink;
	else
	   href=mylink.href;
	window.open(href, windowname, parameters);
	return false;
	}

function openAWindow(pageToLoad, winName, width, height, center)
{
    xposition=0; yposition=0;
    if ((parseInt(navigator.appVersion) >= 4 ) && (center)){
        xposition = (screen.width - width) / 2;
        yposition = (screen.height - height) / 2;
    }
	
    var args = "";
    	args += "width=" + width + "," + "height=" + height + ","
		+ "location=0,"
		+ "menubar=0,"
		+ "resizable=0,"
		+ "scrollbars=0,"
		+ "statusbar=false,dependent,alwaysraised,"
		+ "status=false,"
		+ "titlebar=no,"
		+ "toolbar=0,"
		+ "hotkeys=0,"
		+ "screenx=" + xposition + ","  //NN Only
		+ "screeny=" + yposition + ","  //NN Only
		+ "left=" + xposition + ","     //IE Only
		+ "top=" + yposition;           //IE Only
		//fullscreen=yes, add for full screen
    	var dmcaWin = window.open(pageToLoad,winName,args );
    	dmcaWin.focus();
}