//blur
function bluring(){ 
	if(event.srcElement.tagName == "A" || event.srcElement.tagName == "IMG")
	document.body.focus(); 
} 
document.onfocusin=bluring;

// png
function setPng24(obj) {  
    obj.width=obj.height=1;  
    obj.className=obj.className.replace(/\bpng24\b/i,'');  
    obj.style.filter =  
    "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+ obj.src +"',sizingMethod='image');"  
    obj.src='';
    return '';  
}


// ·¹ÀÌ¾î º¸±â
function layerView(layer) {
	if(document.getElementById(layer)) 	document.getElementById(layer).style.display = "block";
}

// ·¹ÀÌ¾î ´Ý±â 
function layerHide(layer) {
	if(document.getElementById(layer)) 	document.getElementById(layer).style.display = "none";
}