PreLoadImage = function(out_image,on_image) {
	this.out_image = out_image;
	this.on_image = on_image;
}

var MainMenuImage = new Array();

function scdw_preloadImages() {
	var d=document;
	if(d.images) {
		if(!d.MM_p) d.MM_p=new Array();
		var i,j=d.MM_p.length,a=scdw_preloadImages.arguments;
		for(i=0; i<a.length;i++) {
			if(a[i].indexOf("#")!=0) {
				if(a[i].length > 0) {
					d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];
				}
			}
		}
		for(i=0; i<a.length; i++) {
			var p_i = new PreLoadImage(a[i],a[i+1]);
			MainMenuImage.push(p_i);
			i++;
		}
	}
}

function scdw_sub_preloadImages() {
	var d=document;
	if(d.images) {
		if(!d.MM_p) d.MM_p=new Array();
		var i,j=d.MM_p.length,a=scdw_sub_preloadImages.arguments;
		for(i=0; i<a.length;i++) {
			if(a[i].indexOf("#")!=0) {
				if(a[i].length > 0) {
					d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];
				}
			}
		}
	}
}

function MainShowHideLayer(id) {
	if(!document.getElementById) return;
	var ua = window.navigator.userAgent.toLowerCase();
	var o = document.getElementById(id);
	if(o) {
		var ul = o.parentNode.parentNode;
		var lis = ul.getElementsByTagName('li');
		for(i=0; i<lis.length; i++) {
			var li = lis[i];
			var t_id = li.getAttribute("id");
			var im = li.getElementsByTagName('img');
			var dv = li.getElementsByTagName('div');
			if(im.length > 0) {
				img = li.getElementsByTagName('img')[0];
				if(t_id == id) {
					if(MainMenuImage[i] && MainMenuImage[i].on_image) {
						img.setAttribute("src",MainMenuImage[i].on_image);
						img.src = MainMenuImage[i].on_image;
					}
				} else {
					if(MainMenuImage[i] && MainMenuImage[i].out_image) {
						img.setAttribute("src",MainMenuImage[i].out_image);
						img.src = MainMenuImage[i].out_image;
					}
				}
			}
			if(dv && dv.length > 0) {
				if(t_id == id) {
					if ((k = ua.indexOf('msie')) != -1){
						var lf = 170+o.offsetLeft;
					} else {
						var lf = 170+o.offsetLeft;
					}
					var dv_o = dv[0];
					dv_o.style.display = 'block';
					var cw = dv_o.offsetWidth;
					var wd = lf+cw;
					if(cw < 830 && wd > 830)
						dv_o.style.left = (830-cw-15)+"px";
					else if(wd > 830)
						dv_o.style.left = "0px";
					else
						dv_o.style.left = lf+"px";
				} else {
					var dv_o = dv[0];
					dv_o.style.display = 'none';
				}
			}
		}
	}
}

function check_search(TheForm) {
	if(TheForm.s_arg.value == "") {
		alert("°Ë»ö¾î¸¦ ÀÔ·ÂÇϼ¼¿ä.");
		TheForm.s_arg.focus();
		return false;
	}
	return true;
}
function go_ho_search(TheForm) {
	if(TheForm.ho.options[TheForm.ho.selectedIndex].value == "") return;
	TheForm.submit();
}
function column_book_onmouse(id1,img1,id2,img2,id3,v1,id4,v2) {
	var obj = document.getElementById(id1);
	if(obj)
		obj.src = img1;
	obj = document.getElementById(id2);
	if(obj)
		obj.src = img2;
	obj = document.getElementById(id3);
	if(obj) {
		obj = obj.style;
		var v = (v1 == 'show') ? '' : 'none';
		obj.display = v;
	}
	obj = document.getElementById(id4);
	if(obj) {
		obj = obj.style;
		var v = (v2 == 'show') ? '' : 'none';
		obj.display = v;
 	}
}