docs(combo): fix nested snippets

Author: Jekata

controls/combobox/troubleshooting/back-button-and-selectedvalue.md

@@ -30,63 +30,63 @@ The combobox shows the correct text, but the SelectedValue property is incorrect
 
 1. Add a hidden field to the page that will hold the selected value of the combobox:
 
-	````ASPNET
-		<input type="hidden" id="RadComboBox1Value" value="" />
-	````
+```ASPNET
+<input type="hidden" id="RadComboBox1Value" value="" />
+```
 
 2. Subscribe to the [OnClientSelectedIndexChanged]({%slug combobox/client-side-programming/events/onclientselectedindexchanged%}) event and update that hidden field:
 
-	````JavaScript
-	function onSelectedIndexChanged(sender, eventArgs) {
-		$get("RadComboBox1Value").value = eventArgs.get_item().get_value();
-	}
-	````
+````JavaScript
+function onSelectedIndexChanged(sender, eventArgs) {
+	$get("RadComboBox1Value").value = eventArgs.get_item().get_value();
+}
+````
 
 3. On pageLoad() check for the value of the hidden field. If it is not empty - find the appropriate combo item and select it:
 
-	````JavaScript
-	function pageLoad() {
-		var savedValue = $get("RadComboBox1Value").value;
-		var combo = $find('<%= RadComboBox1.ClientID %>');
-		if (savedValue != "" && combo.findItemByValue(savedValue)) {
-		  combo.findItemByValue(savedValue).select();
-		}
+````JavaScript
+function pageLoad() {
+	var savedValue = $get("RadComboBox1Value").value;
+	var combo = $find('<%= RadComboBox1.ClientID %>');
+	if (savedValue != "" && combo.findItemByValue(savedValue)) {
+	  combo.findItemByValue(savedValue).select();
 	}
-	````
+}
+````
 
 
 
 Here is the final code:
 
-````ASPNET
-	<telerik:RadComboBox RenderMode="Lightweight" ID="RadComboBox1"
-	   runat="server"
-	   OnClientSelectedIndexChanged="onSelectedIndexChanged">
-	   <Items>
-		   <telerik:RadComboBoxItem runat="server" Text="Red" Value="red" />
-		   <telerik:RadComboBoxItem runat="server" Text="Blue" Value="blue" />
-		   <telerik:RadComboBoxItem runat="server" Text="Green" Value="Green" />
-	   </Items>
-	</telerik:RadComboBox>
-	   
-	<input type="hidden" id="RadComboBox1Value" value="" />
-	   
-	<asp:Button ID="Button1" runat="server" Text="Button that Redirects" />
-	<script type="text/javascript">
-		function pageLoad() {
-			var savedValue = $get("RadComboBox1Value").value;
-			var combo = $find('<%= RadComboBox1.ClientID %>');
-	
-			if (savedValue != "" && combo.findItemByValue(savedValue)) {
-				combo.findItemByValue(savedValue).select();
-			}
-		}
-	
-		function onSelectedIndexChanged(sender, eventArgs) {
-			$get("RadComboBox1Value").value = eventArgs.get_item().get_value();
+```HTML
+<telerik:RadComboBox RenderMode="Lightweight" ID="RadComboBox1"
+   runat="server"
+   OnClientSelectedIndexChanged="onSelectedIndexChanged">
+   <Items>
+	   <telerik:RadComboBoxItem runat="server" Text="Red" Value="red" />
+	   <telerik:RadComboBoxItem runat="server" Text="Blue" Value="blue" />
+	   <telerik:RadComboBoxItem runat="server" Text="Green" Value="Green" />
+   </Items>
+</telerik:RadComboBox>
+   
+<input type="hidden" id="RadComboBox1Value" value="" />
+   
+<asp:Button ID="Button1" runat="server" Text="Button that Redirects" />
+<script type="text/javascript">
+	function pageLoad() {
+		var savedValue = $get("RadComboBox1Value").value;
+		var combo = $find('<%= RadComboBox1.ClientID %>');
+
+		if (savedValue != "" && combo.findItemByValue(savedValue)) {
+			combo.findItemByValue(savedValue).select();
 		}
-	</script>
-````
+	}
+
+	function onSelectedIndexChanged(sender, eventArgs) {
+		$get("RadComboBox1Value").value = eventArgs.get_item().get_value();
+	}
+</script>
+```