function popup(url, width, height, name)
{
	
	var left = (screen.availWidth)?(screen.availWidth-width)/2:100;
	var top = (screen.availHeight)?(screen.availHeight-height)/2:100;
  	var winOptions = "width=" + width + ",height=" + height + ",left=" + left + ",top=" + top + ",statusbar=no,toolbar=no,personalbar=no,menubar=no,scrollbars=yes,resizable=yes"
	var openOptions = url;
	var type = '';
	winName = open(openOptions, type, winOptions);
	winName.focus(); 
	
}

function opennewpage(site, width, height)
{
	if(site.indexOf('http') == -1)
	{
		site = 'http://' + site;
	}
	 
	
	var left = (screen.availWidth)?(screen.availWidth-width)/2:100;
	var top = (screen.availHeight)?(screen.availHeight-height)/2:100;
  	var winOptions = "width=" + width + ",height=" + height + ",left=" + left + ",top=" + top + ",statusbar=no,toolbar=no,personalbar=no,menubar=no,scrollbars=yes,resizable=yes"
	var openOptions = site;
	var type = '';
	winName = open(openOptions, type, winOptions);
	winName.focus(); 
}