function addContent(product_search_list, product_criterias_list, product_navigator)
{
    var ie4=document.all&&navigator.userAgent.indexOf("Opera")==-1;
    var ns4=document.layers;
    var ns6=document.getElementById&&navigator.userAgent.indexOf("Opera")==-1;

    var content;
    if(ie4){showContentObj=document.product_search_list;}
    if(ns6){showContentObj=document.getElementById(product_search_list);}
  
      if(ie4||ns6){
        if(content!=showContentObj.innerHTML){content=showContentObj.innerHTML;}
        else{content="";}
      }
    
    if (document.getElementById("product_search").style.height != '275px')
    {
    // content for product menu list
                  
    
    showContentObj.innerHTML = content; 
    
    content = "";
    if(ie4){showContentObj=document.product_criterias_list;}
    if(ns6){showContentObj=document.getElementById(product_criterias_list);}
  
    if(ie4||ns6){
    if(content!=showContentObj.innerHTML){content=showContentObj.innerHTML;}
      else{content="";}
    }
    
    // content for search text fields
    
    
    showContentObj.innerHTML = content; 
    
    document.getElementById("product_search").style.height = '275px';
    document.getElementById("product_search_list").style.height = '300px';
    document.getElementById("product_navigator").style.height = '235px';
    document.getElementById("product_criterias_list").style.height = '300px';
    
    document.getElementById("product_navigator").style.margin = '60px 263px';
    }
}