var clickmessage="!"

function disableclick(e) {

if (document.all) {

if (event.button==2||event.button==3) {

//if (event.srcElement.tagName=="IMG"){

alert(clickmessage);

return false;

//}

}

}

if (document.layers) {

if (e.which == 3) {

alert(clickmessage);

return false;

}

}

}

function associateimages(){

for(i=0;i<document.images.length;i++)

document.images[i].onmousedown=disableclick;

}

if (document.all)

document.onmousedown=disableclick

else if (document.layers)

associateimages()