function getPage(thePage,wt,ht){
        leftPos= (screen.width-wt)/2
        topPos = (screen.height-ht)/2
        newWin1 = window.open(thePage,'aWin','toolbars=no, resizeable=no,scrollbars=no,left='+leftPos+',top='+topPos+',width='+wt+',height='+ht)
}