var win = null;


function Popup(mypage,myname,w,h,scroll,resize)
{
	
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
	settings ='height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable='+resize;
	win = window.open(mypage,myname,settings);
	if(win)
	{
		if(!win.closed)
		{
			win.focus();
		}
	}	
}