function $(str) { return document.getElementById(str); }
function $$(str) { return document.getElementsByName(str); }
function getStyle(tag, attr, isInteger) {
	var ret = "";
	if (tag.currentStyle) {
		attr = attr.replace(/\-[a-z]/g, function () { return arguments[0].substr(1, 1).toUpperCase(); });
		ret = tag.currentStyle[attr];
	} else {
		ret = document.defaultView.getComputedStyle(tag, "").getPropertyValue(attr);
	}
	if (isInteger === true) { ret = ret.replace(/[^0-9]+/, ""); ret = Number(ret); }
	return ret;
}
function getBounds(tag) {
	var ret = {};
	if (tag.getBoundingClientRect) {
		var rect = tag.getBoundingClientRect();
		ret.left = rect.left + (document.documentElement.scrollLeft || document.body.scrollLeft);
		ret.top = rect.top + (document.documentElement.scrollTop || document.body.scrollTop);
		ret.width = rect.right - rect.left;
		ret.height = rect.bottom - rect.top;
	} else if (document.getBoxObjectFor) {
		var box = document.getBoxObjectFor(tag);
		ret.left = box.x;
		ret.top = box.y;
		ret.width = box.width;
		ret.height = box.height;
	} else {
		ret.left = tag.clientLeft;
		ret.top = tag.clientTop;
		var parents = tag;
		while (parents.parentNode.nodeName != "HTML") {
			ret.left += parents.offsetLeft;
			ret.top += parents.offsetTop;
			parents = parents.offsetParent;
		}
		ret.width = tag.offsetWidth;
		ret.height = tag.offsetHeight;
	}
	if (/MSIE (6|7)\.0/.test(navigator.userAgent) == true) {
		ret.left -= 2;
		ret.top -= 2;
	}
	return ret;
}
function getFixPng(blankimage, elements) {
	if (!/MSIE 6\.0/.test(navigator.userAgent)) { return; }
	if (!elements || elements.constructor !== Array) { elements = ["IMG"]; }
	for (var i = 0; i < elements.length; i++) {
		var element = document.getElementsByTagName(elements[i]);
		for (var j = 0; j < element.length; j++) {
			var obj = element[j];
			if (obj.nodeName == "IMG" && !/\.png$/i.test(obj.src)) { continue; } else if (obj.nodeName != "IMG" && !/\.png"?\)$/i.test(obj.currentStyle.backgroundImage)) { continue; }
			//alert(obj.nodeName);
			//if (!/\.png$/i.test(obj.src)) { continue; }
			if (obj.style.filter != "") { continue; }
			var Src, Width, Height;
			Src = (obj.src || obj.currentStyle.backgroundImage.replace(/^url\(/,"").replace(/\)$/, "").replace(/"/g, ""));
			Width = obj.width;
			Height = obj.height;
			obj.src = blankimage;
			obj.width = Width;
			obj.height = Height;
			obj.style.backgroundImage = "url(" + blankimage + ")";
			obj.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + Src + "', sizingMethod='scale')";

			//obj.style.setAttribute("filter", "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + Src + "', sizingMethod='scale')");
		}
	}
}

var tjoeun = {
	me: "",
	sd: "",
	subDomain: function () {
		var arr = location.hostname.split(".");
		if (arr.length < 4) { return "kn"; }
		return arr[0];
	},
	imageOnOff: function (args) {
		var btns = args.btns;
		var classnm = args.classnm;
		var ext = args.ext;
		for (var i = 0, i_len = btns.length; i < i_len; i++) {
			if (!(new RegExp(classnm)).test(btns[i].className)) { continue; }
			for (var j = 0, j_len = args.events.length; j < j_len; j++) {
				btns[i][args.events[j]] = function () {
					for (var k = 0, k_len = btns.length; k< k_len; k++) {
						if (btns[k] == this) {
							btns[k].src = btns[k].src.replace((new RegExp("off\." + ext + "$")), "on." + ext);
							if (args.on.w !== null) { btns[k].width = args.on.w; }
							if (args.on.h !== null) { btns[k].height = args.on.h; }
							if (typeof args.actions == "function") { args.actions(k); }
						} else {
							btns[k].src = btns[k].src.replace((new RegExp("on\." + ext + "$")), "off." + ext);
							if (args.on.w !== null) { btns[k].width = args.on.w; }
							if (args.off.h !== null) { btns[k].height = args.off.h; }
						}
					}
				}
			}
		}
	},
	init: function () {
		var that = this;
		if ($("flashbg_line_right") !== null) {
			$("flashbg_line_right").style.display = "block";
			//$("flashbg_line_right").attr('style','display: block'); 
		}
		//for left flash nav
		if ($("foot_link_container") !== null) {
			$("foot_link_container").style.display = "block";
			//$("foot_link_container").attr('style','display: block'); 
			if ($("footer") !== null) {
				var footer_Bounds = getBounds($("footer"));
				$("foot_link_container").style.top = footer_Bounds.top + "px";
				$("footer").style.marginTop = ($("foot_link_container").offsetHeight + getStyle($("footer"), "margin-top", true) * 2) + "px";
			}
		}
		//for left flash nav
		if ($("footer") && $("footer_line_both") !== null) {
			$("footer_line_both").style.display = "block";
			//$("footer_line_both").attr('style','display: block'); 
			$("footer_line_both").style.top = getBounds($("footer")).top + "px";
		}
///Äü°íÁ¤ ¿¡·¯/////////////////////////////////////////////////////////////////////////////////////////////////// 2009-01-11 by Han, su-jin /////		
//		if ($("quick_top") !== null) {
//			var quick_top_y = getStyle($("quick_top"), "top", true);
//			new Floating($("quick_top"), false, true, 0, quick_top_y, 20, 10);
//		}
//		if (this.me == "/campus/campus_main.asp" && $("quick_top") !== null && $("quick_top2") !== null) {
//			$("quick_top2").style.position = "relative";
//			$("quick_top2").style.left = (0 - $("quick_top2").offsetWidth - 30) + "px";
//			if (/MSIE 8\.0/.test(navigator.userAgent)) {
//				var gB_panel_repos = function () {
//					var gB_panel = getBounds($("container").getElementsByTagName("DIV")[0]);
//					$("quick_top").style.marginLeft = 0;
//					$("quick_top").style.left = (gB_panel.left + gB_panel.width - 20) + "px";
//				}
//				gB_panel_repos();
//				window.onresize = function () { gB_panel_repos(); }
//			}
//		}
		if ($("09_campus_quick_icon") !== null) {
			var quick = 0;
			for (var i = 0, i_len = document.images.length; i < i_len; i++) {
				if (document.images[i].className == "09_campus_quick") {
					quick++;
					var i_new = i;
					(function () {
						var i_quick = quick;
						document.images[i_new].onmouseover = function () {
							$("09_campus_quick_icon").src = $("09_campus_quick_icon").src.replace(/_\d+\.gif$/, "_" + i_quick + ".gif");
							this.src = this.src.replace(/_textoff_/, "_texton_");
						}
						document.images[i_new].onmouseout = function () {
							this.src = this.src.replace(/_texton_/, "_textoff_");
						}
					})();
				}
			}
		}
		//login id,password bg effect
		if ($("userid") !== null) {
			var bg_id = getStyle($("userid"), "background-image");
			$("userid").onfocus = function () { this.style.backgroundImage = "url()"; }
			$("userid").onblur = function () { if (!this.value) { this.style.backgroundImage = bg_id; } }
			
		}
		if ($("userpw") !== null) {
			var bg_pw = getStyle($("userpw"), "background-image");
			$("userpw").onfocus = function () { this.style.backgroundImage = "url()"; }
			$("userpw").onblur = function () { if (!this.value) { this.style.backgroundImage = bg_pw; } }
		}
		//login id,password bg effect
		//campus main tab
		if ($("campus_main_tabs_t") !== null) {
			tjoeun.imageOnOff({
				btns: $("campus_main_tabs_t").getElementsByTagName("IMG"),
				classnm: "btn",
				ext: "gif",
				on: {w: null, h: 41},
				off: {w: null, h: 29},
				events: ["onmouseover"],
				actions: function (n) {
					if ($("campus_main_tabs_c_1") === null || $("campus_main_tabs_c_2") === null || $("campus_main_tabs_c_3") === null) { return; }
					var childs = [$("campus_main_tabs_c_1"), $("campus_main_tabs_c_2"), $("campus_main_tabs_c_3")];
					for (var i = 0, i_len = childs.length; i < i_len; i++) {
						if (i == n) { childs[i].style.display = "block"; } else { childs[i].style.display = "none"; }
					}
				}
			});
		}
		if ($("campus_main_tabs_c") !== null) {
			if ($("campus_main_tabs_c_1") !== null) {
				tjoeun.imageOnOff({
					btns: $("campus_main_tabs_c_1").getElementsByTagName("IMG"),
					classnm: "btn",
					ext: "gif",
					on: {w: null, h: null},
					off: {w: null, h: null},
					events: ["onmouseover"],
					actions: function (n) {
						$("tabbtn_img_1").src = $("tabbtn_img_1").src.replace(/\d+\.jpg$/, n + ".jpg");
						$("tabbtn_img_1").useMap = $("tabbtn_img_1").useMap.replace(/_1\d+$/, "_1" + n);
					}
				});
			}
			if ($("campus_main_tabs_c_2") !== null) {
				tjoeun.imageOnOff({
					btns: $("campus_main_tabs_c_2").getElementsByTagName("IMG"),
					classnm: "btn",
					ext: "gif",
					on: {w: null, h: null},
					off: {w: null, h: null},
					events: ["onmouseover"],
					actions: function (n) {
						//$("tabbtn_img_2").src = $("tabbtn_img_2").src.replace(/\d+(_..)\.jpg$/, n + "$1.jpg");
						var n_temp = n + 1;
						if (n_temp == 7) {
							$("tabbtn_img_2").src = $("tabbtn_img_2").src.replace(/_\d_\d\.jpg$/, "_3_6_kn.jpg");
						} else {
							$("tabbtn_img_2").src = $("tabbtn_img_2").src.replace(/_\d_\d+(_..)?\.jpg$/, "_1_" + (n + 1) + ".jpg");
						}
						$("tabbtn_img_2").useMap = $("tabbtn_img_2").useMap.replace(/_2\d+$/, "_2" + n);
					}
				});
			}
			if ($("campus_main_tabs_c_3") !== null) {
				tjoeun.imageOnOff({
					btns: $("campus_main_tabs_c_3").getElementsByTagName("IMG"),
					classnm: "btn",
					ext: "gif",
					on: {w: null, h: null},
					off: {w: null, h: null},
					events: ["onmouseover"],
					actions: function (n) {
						$("tabbtn_img_3").src = $("tabbtn_img_3").src.replace(/\d+(_..)\.jpg$/, n + "$1.jpg");
						$("tabbtn_img_3").useMap = $("tabbtn_img_3").useMap.replace(/_3\d+$/, "_3" + n);
					}
				});
			}
		}
		//campus main tab
	}
};

window.onload = function () {
	try { document.execCommand("BackgroundImageCache", false, true); } catch (e) {}
	tjoeun.init();
	getFixPng("../images/blank.gif", ["IMG", "DIV"]);
}