/* Á¶ÀÛ¹ý */
function layer_show(s)
{
  if (document.layers)
  {
    document.layers[s].top = event.clientY + document.body.scrollTop;   
    document.layers[s].left = event.clientX + document.body.scrollLeft;   
  }
  if(document.all)
  {
    document.all(s).style.top = event.clientY + document.body.scrollTop; 
    document.all(s).style.left =event.clientX + document.body.scrollLeft; 
  }
}

function my_show_layer(lname)
{
 if (lname == '') return;
 
 var layer  = document.all ? document.all(lname).style : document.layers[lname];
 var show  = document.all ? 'visible' : 'show';
 var hide  = document.all ? 'hidden' : 'hide';
 
 if (my_show_layer.arguments.length <= 1)
  layer.visibility = show;
 else
  layer.visibility = (my_show_layer.arguments[1] == 0 ? show : hide);
}

function my_hide_layer(lname)
{
  if (document.layers)
    document.layers[lname].visibility = 'hide'    
  if(document.all)
    document.all(lname).style.visibility = 'hidden' 
}	
	function CheckUIElements(btn_top_start){

		var yMenuFrom, yMenuTo, yButtonFrom, yButtonTo, yOffset, timeoutNextCheck;

		
		yMenuFrom = parseInt (mmID.style.top, 10);

		var scroll_top = document.body.scrollTop;

		//topÀ̹ÌÁö óÀ½(init) È­¸é Ãâ·Â À§Ä¡
		var top_offset = document.getElementById("base_mnu").offsetTop-19;
		if (btn_top_start > top_offset)
		{
			top_offset = btn_top_start;
		}
		//alert(top_offset);
		var browser_height = document.body.clientHeight;
		var min_browser_height_size = 610;	// ºê¶ó¿ìÀú ÃÖ¼ÒHeight

		if (scroll_top > (top_offset + 406) )
		{
			if (browser_height > min_browser_height_size) {
				//ÇöÀç ºê¶ó¿ìÀú Å©±â°¡ ÃÖ¼Ò ºê¶ó¿ìÀúº¸´Ù Ŭ¶§ topÀ̹ÌÁöÀÇ À§Ä¡
				yMenuTo = scroll_top - 406 ; // Top ºÎÅÍÀÇ °£°Ý
			}else {
				//ÀÛÀ¸¸é 
				yMenuTo = top_offset; // Top ºÎÅÍÀÇ °£°Ý
			}
		}else {
			yMenuTo = top_offset ; // Top ºÎÅÍÀÇ °£°Ý
		}

		timeoutNextCheck = 10;

		if ( yMenuFrom != yMenuTo ) {
			yOffset = Math.ceil( Math.abs( yMenuTo - yMenuFrom ) / 20 );
			if ( yMenuTo < yMenuFrom )
			yOffset = -yOffset;

			if (yOffset > 1 || yOffset < -1) {
				mmID.style.top = parseInt (mmID.style.top, 10) + yOffset + "px";
			}
		}

		setTimeout ("CheckUIElements()", timeoutNextCheck);
	}

	function OnLoad(btn_top_start) {
		//alert(btn_top_start);
		mmID.style.top = document.body.scrollTop + btn_top_start;

		CheckUIElements(btn_top_start);
		return true;
	}