<apex:page controller="DreamhouseProspects">
        <apex:pageBlock >
            <apex:sectionHeader title="Leads" subtitle="Home"/>
            <apex:form >
                <div style="text-align:center;">
                    <apex:commandButton action="{!URLFOR($Action.Lead.New)}" value="New"/>
                </div>
                <apex:outputLabel value="Sort: " for="sortList" />
                <apex:selectList value="{! sortOrder}" size="1" id="sortList">
                    <apex:selectOption itemvalue="LastName" />
                    <apex:selectOption itemvalue="FirstName" />
                </apex:selectList>
                <apex:commandButton value="Sort Table" action="{!sortList}" reRender="leads_list"/>
                <apex:pageBlockTable value="{! leads }" var="ct" id="leads_list">
                    <apex:column headerValue="First Name">
                        <apex:outputLink value="/{! ct.Id}">{! ct.FirstName }</apex:outputLink>
                    </apex:column>
                    <apex:column value="{! ct.LastName }"/>
                    <apex:column value="{! ct.Email }"/>
                    <apex:column value="{! ct.Phone }"/>
                </apex:pageBlockTable>
            </apex:form>
        </apex:pageBlock>
</apex:page>