function OpenWindow(theURL,winName,w,h,scroll)
{
 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=no'
 window.open(theURL,winName,settings);
}
function OpenUsg(theURL)
{
	
 LeftPosition = (screen.width) ? (screen.width-718)/2 : 0;
 TopPosition = (screen.height) ? (screen.height-700)/2 : 0;
 settings = 'height=700,width=718,top='+TopPosition+',left='+LeftPosition+',scrollbars=yes,resizable=no';
 popWin = window.open('./prezentacja/'+theURL,'usg',settings);
 
}