function launchCenter(url,width,height,name)
{
	var x = screen.availWidth;
	var y = screen.availHeight;
	offset = 0;
	var settings = 'left='+(offset+(x-width))/2+',top='+(offset+(y-height))/2+',width='+width+', height='+height+',resizeable=yes,location=no,scrollbars=yes';
	var NS = (navigator.appName == "Netscape");
	var NSver = parseFloat(navigator.appVersion);

	if ( NS ) {
		var settings = 'left='+(x-(width+75))/2+',top='+(y-(height+50))/2+',width='+(width+75)+',height='+(height+50)+',location=no,scrollbars=yes,resizeable=yes';
		//var settings = "left=200, top=200,location=yes";
	if ( NSver <   5 )
			name = window.open (url,name,settings);
		if ( NSver >= 5 )
			name = window.open (url,name,settings);
	}
	else
		name = window.open (url,name,settings);
	name.focus();
}