var i = 0;

function show_green_info_txt(txt, sec) {

   document.getElementById('msg_box_head').style.backgroundColor='#DCFC9D';                                                            
   document.getElementById('msg_box_head').style.borderColor='#AFFC1B';                                                            
   document.getElementById('msg_box_head').innerHTML=txt;
   
   slide_box_out(sec);
   
}

function show_red_info_txt(txt, sec) {

                                             
   document.getElementById('msg_box_head').style.backgroundColor='#FAC7C9';
   document.getElementById('msg_box_head').style.borderColor='#FC8186';
   document.getElementById('msg_box_head').innerHTML=txt;
   
   slide_box_out(sec);
   
}


function slide_box_out(sec) {
                       
      document.getElementById('msg_box_head').style.top=i+'px';
      
      i++;
      
      if(i < 40) setTimeout("slide_box_out("+sec+");",1);
      else setTimeout("slide_box_in();",sec);
   
}
   
   function slide_box_in() {
                                                           
      document.getElementById('msg_box_head').style.top=i+'px';
      
      i--;
      
      if(i > -55) setTimeout("slide_box_in();",1);
   
}