function display_divka(divIdName){ 
	document.getElementById('previewDiv').style.display = 'none';
}

function message(ctrlname) {
    
			content= "<p align=right style=\"text-decoration: underline; font-weight: bold\" onclick=display_divka()>X</p><b><br>"+ctrlname+"<br></b>";           
      if(document.getElementById('previewDiv')==null) {
	    	newdiv = document.createElement('div');   
	    	newdiv.setAttribute('id', 'previewDiv'); 
	        newdiv.setAttribute('align','center');     
	    	newdiv.setAttribute('class','previewbox');
      } else {
            newdiv = document.getElementById('previewDiv');
      }
	    	 

	    	//newdiv.setAttribute('onclick','display_divka("divIdName")');      
			//setInterval('display_divka("divIdName")',20000); 
		    document.body.appendChild(newdiv);     
		  	  
		 	newdiv.innerHTML = content;      
		 	newdiv.style.display ='block'; 
}