function disableclick(e) \{\
if (document.all) \{\
if (event.button==2||event.button==3) \{\
if (event.srcElement.tagName=="IMG")\{\
alert(clickmessage);\
return false;\
\}\
\}\
\}\
else if (document.layers) \{\
if (e.which == 3) \{\
alert(clickmessage);\
return false;\
\}\
\}\
else if (document.getElementById)\{\
if (e.which==3&&e.target.tagName=="IMG")\{\
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.getElementById)\
document.onmouseup=disableclick\
else if (document.layers)\
associateimages()}