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
}


function click() {
if (event.button==2) { 
alert('Welcome to my Website') 
}
}
document.onmousedown=click

function click() { 
if (event.button==2) { 
alert('Welcome to my Website') 
} 
} 
document.onmousedown=click