var selTab = 1;

   function checkSurveyTaken() {
      if (!hasTakenSurvey)
         Popup.showModal('modal',null,null,{'screenColor':'#000000','screenOpacity':.4});
   }

   function link(url) {
	  tabClick(0);
	  window.scrollTo(0, document.getElementById("content_body").offsetTop);
	  checkSurveyTaken();
	  AJAXGet(url, "blog_content");
   }

   function hiLite(tabnum, type) {
      switch (tabnum) {
	     case 1:
   		    if (selTab != tabnum) {
			   if (type == 'over')
  			      document.images["image1"].src = "/images/tab_home_on.jpg";
			   else if (type == 'out')
  			      document.images["image1"].src = "/images/tab_home_off.jpg";			   
			}
		    break;
		 case 2:
            if (selTab != tabnum) {
			   if (type == 'over')
  			      document.images["image2"].src = "/images/tab_calendar_on.jpg";
			   else if (type == 'out')
  			      document.images["image2"].src = "/images/tab_calendar_off.jpg";			   
			}			
		    break;
		case 3:
            if (selTab != tabnum) {
			   if (type == 'over')
  			      document.images["image3"].src = "/images/tab_contact_on.jpg";
			   else if (type == 'out')
  			      document.images["image3"].src = "/images/tab_contact_off.jpg";			   
			}			
		    break;
	  }
   }
   
   function tabClick(tabnum) {
	  selTab = tabnum;
	  switch (tabnum) {
	     case 0:
		    document.images["image1"].src = "/images/tab_home_off.jpg";
			document.images["image2"].src = "/images/tab_calendar_off.jpg"; 
			document.images["image3"].src = "/images/tab_contact_off.jpg";
			break;
	     case 1: 
		    document.images["image1"].src = "/images/tab_home_on.jpg";
			document.images["image2"].src = "/images/tab_calendar_off.jpg"; 
			document.images["image3"].src = "/images/tab_contact_off.jpg";
			AJAXGetEx("/?action=30&pid=2", "content", homeHandler);
			break;
	     case 2:
		    document.images["image1"].src = "/images/tab_home_off.jpg";
			document.images["image2"].src = "/images/tab_calendar_on.jpg";
			document.images["image3"].src = "/images/tab_contact_off.jpg";
			AJAXGetEx("/?action=30&pid=9", "content", calHandler);
			break;
	     case 3:
		    document.images["image1"].src = "/images/tab_home_off.jpg";
			document.images["image2"].src = "/images/tab_calendar_off.jpg";
			document.images["image3"].src = "/images/tab_contact_on.jpg";
            AJAXGetEx("/?action=30&pid=2", "content", contactHandler);
			break;
	  } 
   }