var adWidth = document.body.clientWidth;
var midwidth = (adWidth - 780) / 2;

function adLeftLoad(){
    var adLeft = document.getElementById('divAdLeft');
    if(!adLeft){
        return;
    }
    
	var html = adLeft.innerHTML.toLowerCase();
	if(html.indexOf('img') == -1 && html.indexOf('object') == -1){
		return;
	}
	
	adLeft.style.display = 'block';
	adLeft.style.left = (midwidth - 110) +'px';
	adLeft.style.top = '200px';
}

function adRightLoad(){
    var adRight = document.getElementById('divAdRight');
    if(!adRight){
        return;
    }
    
	var html = adRight.innerHTML.toLowerCase();
	if(html.indexOf('img') == -1 && html.indexOf('object') == -1){
		return;
	}
	
	adRight.style.display = 'block';
	adRight.style.left = (midwidth + 775) +'px';
	adRight.style.top = '200px';
}

function closeSideAd(){
    var adLeft = document.getElementById('divAdLeft');
    if(adLeft){
        adLeft.style.display = 'none';
    }
    
    var adRight = document.getElementById('divAdRight');
	if(adRight){
	    adRight.style.display = 'none';
	}
}