var win_width
var win_height
var left_pozition=50
var top_pozition=20
function OpenWindow (c,w,h) {
        win_width = w
        win_height = h
    NevWin=window.open(c,'comments','width='+win_width+',height='+win_height+',left='+left_pozition+',top='+top_pozition+',scrollbars=no,status=no');
}