function hasClassName(el,class_name){return new RegExp('\\b'+class_name+'\\b').test(el.className)}
function addClassName(el,class_name){if(!el.className){el.className=class_name} else if(!hasClassName(el,class_name)){var className=el.className+" "+class_name;el.className=className.split(/\s+/).join(' ')}}
function removeClassName(el,class_name){var className=el.className;if(className){className=className.replace(new RegExp('\\b'+class_name+'\\b'),'');className=className.replace(/\s+/g,' ');el.className=className.replace(/\s+$/g,'')}}

function retrieve_GET() {
	var aRes = new Array();
	var query = window.location.search.substring(1);
	var arr = query.split('&');
	for (var i=0;i<arr.length;i++) {
		var s = arr[i];
		var pos = s.indexOf('=');
		if (pos > 0) {
			var key = s.substring(0,pos);
			var val = s.substring(pos+1);
			aRes[key] = val;
		}
	}
	return aRes;
}
function gnavi_init() {
	if (typeof document.documentElement.style.maxHeight != "undefined") return;
	var gnavi = document.getElementById("gnavi");
	var list = gnavi.getElementsByTagName("dl");
	for (var i=0;i<list.length;i++) {
		list[i].onmouseover=gnavi_toggle;
		list[i].onmouseout=gnavi_toggle;
	}
}
function gnavi_toggle() {
	var obj = this;
	for (var i=0;i<obj.childNodes.length;i++) {
		var n = obj.childNodes[i];
		if (n.nodeName.toLowerCase()=="dd") {
			n.style.display=n.style.display=="block"?"none":"block";
		}
	}
}

function hover_init(id) {
	var nParent = document.getElementById(id);
	nParent._preload = new Array();
	var list = nParent.getElementsByTagName("a");
	for (var i=0;i<list.length;i++) {
		var n = list[i];
		if (hasClassName(n,"nohover")) continue;
		var img = n.getElementsByTagName("img");
		if (img.length) {
			var j = img[0].src.lastIndexOf(".")
			n._img = img[0];
			n._normal = img[0].src;
			n._active = img[0].src.substring(0,j)+"_on."+
					img[0].src.substring(j+1);
			var tmp = new Image();
			tmp.src = n._active;
			nParent._preload.push(tmp);
		}
		n.onmouseover=hover_on;
		n.onmouseout =hover_off;
	}
}
function hover_on() { this._img.src =this._active; }
function hover_off() { this._img.src=this._normal; }


function MM_swapImgRestore() { //v3.0
var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
var p,i,x;if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
 if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}