function launchwin(zx1,zx2,zx3,zx4,zx5)
{

var v = parseInt( navigator.appVersion );
        
if ( v < 3 )
{
        warning_win = window.open('',zx5,'width='+zx2+',height='+zx3+'');
        warning_win.location.href = zx1;
}

	if ( v < 4 ) {
		checkWindow = window.open(zx1,zx5,'width='+zx2+',height='+zx3+',screenx=200,screeny=200,resizable=no,status=no,location=no,toolbar=no,directories=no,scrollbars='+zx4+'');
		window.checkWindow.focus();
	} else 
	
	{


		ecchhs = parseInt((screen.availWidth-zx2)/2);
		whyy	= parseInt((screen.availHeight-zx3)/2);

		checkWindow = window.open(zx1,zx5,'width='+zx2+',height='+zx3+',screenx='+ecchhs+',screeny='+whyy+',left='+ecchhs+',top='+whyy+',resizable=no,status=no,location=no,toolbar=no,directories=no,scrollbars='+zx4+'');
	}
}