function popwin(aPage, aTarget, w, h, var1, var2){
       window.open(aPage,aTarget,'status=no,top=0,left=0,scrollbars=' +((var1=='scroll' || var2=='scroll')? 'yes' : 'no')+ ',resizable=' +((var1=='resize' || var2=='resize')? 'yes' : 'no')+ ',width='+w+',height='+h);
		}