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


// IE Embed patch
if(typeof(__embed_target_id)=='undefined'){
	var __embed_target_id = null;
}

function explain(tableMenu){  
    if (tableMenu.style.display == "none") 
	{
		for(i=1;i<4;i++)
		{
			if( eval("document.all.menu"+i) ) 
				eval("document.all.menu"+i).style.display = "none";
		}
		tableMenu.style.display = ""; 
	}
    else     
       tableMenu.style.display = "none";    
 
}