fix puncuation and move notice to context toggle titles

index.html

@@ -66,15 +66,20 @@ THE SOFTWARE.
 			<div class="info">
 				<p>Version: <span id="version">(loading)</span><br/>
 				Change to: <select id="versionSelector"></select><br/>
-				Execution environment does not connect to any node by default, everything is local and in memory only.<br/>
 				<code>tx.origin = <span id="txorigin"/></code></p>
 			</div>
 			<div id="optimizeBox">
 				<label for="editorWrap"><input id="editorWrap" type="checkbox">Text Wrap</label>
 				<label for="optimize"><input id="optimize" type="checkbox">Enable Optimization</label>
 				<span id="executionContext">
-					<label for="vm"><input id="vm" type="radio" value="vm" checked name="executionContext">JavaScript VM</label>
-					<label for="web3"><input id="web3" type="radio" value="web3" name="executionContext">Web3 Provider</label>
+					<label for="vm" title="Execution environment does not connect to any node, everything is local and in memory only.">
+						<input id="vm" type="radio" value="vm" checked name="executionContext">
+						JavaScript VM
+					</label>
+					<label for="web3" title="Execution environment connects to node at localhost, transactions will be sent to the network and can cause loss of money or worse!">
+						<input id="web3" type="radio" value="web3" name="executionContext">
+						Web3 Provider
+					</label>
 				</span>
 			</div>
 		</div>
@@ -125,7 +130,7 @@ THE SOFTWARE.
 	$web3Toggle.on('change', executionContextChange );
 
 	function executionContextChange (ev) {
-		if (ev.target.value == 'web3' && !confirm("Are you sure you want to connect to a local ethereum node.") ) {
+		if (ev.target.value == 'web3' && !confirm("Are you sure you want to connect to a local ethereum node?") ) {
 			$vmToggle.get(0).checked = true;
 			executionContext = 'vm';
 		} else executionContext = ev.target.value;