function disableselect(e)
 {
    return false
 }
 function reEnable()
 {
    return true
 }
 //if IE4+
 document.onselectstart=new Function ("return false")
 //if NS6
 if (window.sidebar)
 {
    document.onmousedown=disableselect
    document.onclick=reEnable
 }