I have implemented table sorting with the help of jquery tablesorter. Everything works fine, except that one of the row in one the column is not sorting properly. I tried all options mentioned in the table sorter website.
<apex:datatable value="{!projectAssetsWrapperList}" var="a" id="theaddrs" styleClass="tablesorter">
<apex:column headerValue="{!$Label.GSD_SRM_Assets_Table_Task_Type}" width="90px">
<apex:outputText value="{!a.tasktypewrap}" />
</apex:column>
<apex:column headerValue="{!$Label.GSD_SRM_Assets_Table_Sent_to_Click}" width="90px">
<apex:outputText value="{!a.senttoclickwrap}" />
</apex:column>
<apex:column headerValue="{!$Label.GSD_SRM_Assets_Table_Planned_Asset_Product_Description}" width="240px">
<apex:outputText value="{!a.plannedAsstProdDescwrap}" />
</apex:column>
<apex:column headerValue="{!$Label.GSD_SRM_Assets_Table_Planned_Asset_Serial_Number}" width="190px">
<apex:outputText value="{!a.plannedAsssetSrnowrap}" />
</apex:column>
<apex:column headerValue="{!$Label.GSD_SRM_Assets_Table_Planned_Asset_Product_Number}" width="190px">
<apex:outputText value="{!a.plannedAssetPrnowrap}" />
</apex:column>
<apex:column headerValue="{!$Label.GSD_SRM_Assets_Table_Installed_Asset_Serial_Number}" width="180px">
<apex:outputText value="{!a.installedAssetSrnowrap}" />
</apex:column>
<apex:column headerValue="{!$Label.GSD_SRM_Assets_Table_Installed_Asset_Product_Number}" width="190px">
<apex:outputText value="{!a.installedAssetPrnowrap}" />
</apex:column>
<apex:column headerValue="{!$Label.GSD_SRM_Assets_Table_Installation_date}" width="110px">
<apex:outputText value="{!a.installationdatewrap}" />
</apex:column>
<apex:column headerValue="{!$Label.GSD_SRM_Assets_Table_Subtask_Name}" width="200px">
<apex:commandLink value="{!a.subtasknamewrap}" action="{!loadProjectTask}" target="_blank">
<apex:param assignTo="{!projectTaskId}" value="{!a.subtaskidwrap}" name="taskId"/>
</apex:commandLink>
</apex:column>
<apex:column headerValue="{!$Label.GSD_SRM_Assets_Table_Resource_Type}" width="120px">
<apex:outputText value="{!a.resourceType}" />
</apex:column>
</apex:dataTable>