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| <!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
function disableOption(index,idlist){
var opt = document.getElementById(idlist).options;
for(i=0; i<opt.length; i++){
opt[i].disabled=false;
}
opt[index].disabled=true;
}
</script>
</head>
<body>
<select id="liste1" onchange="disableOption(this.selectedIndex,'liste2');">
<option></option>
<option label="test" value="1">Afrique</option>
<option label="test" value="2">Amérique</option>
<option label="test" value="3">Asie</option>
<option label="test" value="4">Australie</option>
<option label="test" value="5">Europe</option>
</select>
<select id="liste2" onchange="disableOption(this.selectedIndex,'liste1');">
<option></option>
<option label="test" value="1">Afrique</option>
<option label="test" value="2">Amérique</option>
<option label="test" value="3">Asie</option>
<option label="test" value="4">Australie</option>
<option label="test" value="5">Europe</option>
</select>
</body>
</html> |
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