function setBaner(object) {   
    var Banner = document.getElementById(object); 
    if( typeof( window.innerWidth ) == 'number' ) { 
        //Non-IE  
        myWidth = window.innerWidth;  
        myHeight = window.innerHeight;
    } 
    else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
        //IE 6+ in 'standards compliant mode'  
        myWidth = document.documentElement.clientWidth; 
        myHeight = document.documentElement.clientHeight; 
    } 
    else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) { 
        //IE 4 compatible      
        myWidth = document.body.clientWidth;  
        myHeight = document.body.clientHeight;       
    }                                                                     

    Banner.style.marginLeft = "-" + parseInt(Banner.offsetWidth / 2) + "px"; 
    Banner.style.marginTop = "-" + parseInt(Banner.offsetHeight / 2) + "px";
    showAp(); 
}      

function showAp() {            
    if (document.layers) {                
        document.layers.baner.visibility = 'visible'; 
  	}                                           
    else if (document.all) {                        
        document.all.baner.style.visibility = 'visible';  
  	}                                                      
    else if (document.getElementById) {
        document.getElementById("baner").style.visibility = 'visible'; 
    }
}  

function hideAp() {  
  	if (document.layers) { 
        document.layers.baner.visibility = 'hide';
  	}                    
    else if (document.all) {   
        document.all.baner.style.visibility = 'hidden'; 
  	}      
    else if (document.getElementById) { 
        document.getElementById("baner").style.visibility = 'hidden'; 
    } 
}