var objDocumentAll = document.all;
var intShowPicture = 1;


function SwitchPictures(){
   if(intShowPicture > 3){
      intShowPicture = 1;
   }else{
      intShowPicture ++;
   }//if(intShowPicture > 4)
   
   objDocumentAll.imgIndustrial.src = 'images/industrial' + intShowPicture + '.jpg';
   objDocumentAll.imgCommercial.src = 'images/Commercial' + intShowPicture + '.jpg';
   objDocumentAll.imgResidention.src = 'images/Residential' + intShowPicture + '.jpg';
   objDocumentAll.imgConsulting.src = 'images/Consulting' + intShowPicture + '.jpg';
   
   setTimeout('SwitchPictures()',5000);
}//function SwitchPictures()

function OnMouseOverPicture(strImageID, strPictureFileName){
    objDocumentAll[strImageID].src = 'images/' + strPictureFileName;
}//function OnMouseOverPicture(strImageID, strPictureFileName)