Display block based on URL query
<script type="text/javascript">
// Get URL
var url = window.location.href;
// Get DIV
var bluediv = document.getElementById('blue');
var reddiv = document.getElementById('red');
var greendiv = document.getElementById('green');
// Check if URL contains the keyword
if( url.search( 'blue' ) > 0 ) {
// Display the message
bluediv.style.display = "block";
}
else if( url.search( 'red' ) > 0 ) {
// Display the message
reddiv.style.display = "block";
}
else if( url.search( 'green' ) > 0 ) {
// Display the message
greendiv.style.display = "block";
}
</script>