function swapSlide(slideNum){

   var divs = document.getElementById('allSlidesContainer').getElementsByTagName('div');
   var slides = [];
   for(var index=0;index<divs.length;index++){
   if(String(divs[index].className).indexOf("energyReportSlide") !=-1){
   slides[slides.length]=divs[index];
   }
   }
   for(var index=0;index<slides.length;index++){ //loop through all slides: hide/show as appropriate, update link styles
   
   //SHOW/HIDE SLIDES & ASSIGN LINK STYLES
      var thisLinkID = 'slideLink' + index;
	  	  
      if(slideNum == index){
         slides[index].className = 'visible energyReportSlide';	 
		 if(index > 0){ document.getElementById(thisLinkID).className = 'slideLinkInactive'; }
		 
	  }
	  else {
         slides[index].className = 'hidden energyReportSlide';
		 if(index > 0){ document.getElementById(thisLinkID).className = 'slideLinkActive';}
		 
	  }	  
    	  
   } // end for

}//swapSlide