Hi,

I need help on Rendered functions, may be i am wrong with below code.

can any one please help me on this 

i have a variable 'total' that contains some integer value this total will change depending on picklist by 'apex:actionsupport'.

here i have one button which will disable and enable with condition for

Ex: if total=50  enable the button 

if total!=50 disable button

here is my code

<apex:form >
<table class="list" >
<tr>
	<td><b>field one</b></td>
	
    <td><apex:selectList value="{!licens}"  size="1">
				<apex:selectOptions value="{!Licenses}"/>
				<apex:actionSupport event="onchange" action="{!test}" reRender="lcnc,totl,counter" />
		</apex:selectList></td>
	
	<td><apex:outputtext id="lcnc" value="{!licenses_Customer_have_Value}"/></td>
</tr>

<tr>
	<td><b>other Reason</b> </td>
	
	<td> <apex:selectList value="{!Reason}"  size="1">
			<apex:selectOptions value="{!Reasons}"/>
			<apex:actionSupport event="onchange" action="{!test}" reRender="Add,totl,counter" />
		</apex:selectList></td>
	
	<td> <apex:outputtext id="Add" value="{!other_Reason_Value}"/></td>
</tr>
                        
<tr>
	<td align="right"><b>Total</b> </td>
	
	<td > &nbsp;</td>
	
	<td > <apex:Outputtext id="totl" value="{!Total}"/>	</td>
</tr>
</table>

<apex:outputpanel id="counter" rendered="{!Total > 85}">
	<apex:commandbutton action="{!Updatecase}" value="Update"  />
</apex:outputpanel>
 </apex:form>