// JavaScript Document
/*dreamweaver js function*/

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_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_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];}
}

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function showtable(id) { //v1.0
  document.getElementById(id).style.display="";
}

function hidetable(id) { //v1.0
  document.getElementById(id).style.display="none";
}


/**
 * ========================================
 *
 * chLang
 * ----------------------------------------
 *
 */
 
function chLang(lang) {
	var currentPath=location.href.toString();
	var switchTc='/chi/';
	var switchEn='/eng/';
	lang = '/'+lang+'/';

	switch (lang){
		case '/eng/':
			currentPath=currentPath.replace(switchTc, switchEn);
			break;
		case '/chi/':
			currentPath=currentPath.replace(switchEn, switchTc);
			break;
		default:
	}

	document.location=currentPath;
}


//var min=8;
//var max=18;
//function changeFontL() {
//   var p = document.getElementsByTagName('p');
//   for(i=0;i<p.length;i++) {
//      if(p[i].style.fontSize) {
//         var s = parseInt(p[i].style.fontSize.replace("px",""));
//      } else {
//         var s = 12;
//      }
//      if(s!=max) {
//         s += 1;
//      }
//      p[i].style.fontSize = s+"px"
//   }
//}
//
//function changeFontS() {
//   var p = document.getElementsByTagName('p');
//   for(i=0;i<p.length;i++) {
//      if(p[i].style.fontSize) {
//         var s = parseInt(p[i].style.fontSize.replace("px",""));
//      } else {
//         var s = 12;
//      }
//      if(s!=min) {
//         s -= 1;
//      }
//      p[i].style.fontSize = s+"px"
//   }   
//}
//function changeFontM() {
//	var fileref=document.createElement("link");
//  fileref.setAttribute("rel", "stylesheet");
//  fileref.setAttribute("type", "text/css");
//  fileref.setAttribute("href", "../../style/screen.css");
//
//fileref.setAttribute("media","screen, print");
//
//}

/**
 * ========================================
 *
 * change font size
 * ----------------------------------------
 *
 *
 *
 *
 */ 

function hasClass2(ele,cls) {

	return ele.className.match(new RegExp('(\\s|^)'+cls+'(\\s|$)'));

} 

function addClass(ele,cls) {

	if (!this.hasClass2(ele,cls)) ele.className += " "+cls;

}

function removeClass(ele,cls) {
	if (hasClass2(ele,cls)) {
		var reg = new RegExp('(\\s|^)'+cls+'(\\s|$)');
		ele.className=ele.className.replace(reg,' ');
	}
}

function changeFont(f){
	var classname;
	var fonts = f;
	
	document.getElementById("sizeS").src = document.getElementById("sizeS").src.replace("_on.gif", ".gif");
	document.getElementById("sizeM").src = document.getElementById("sizeM").src.replace("_on.gif", ".gif");
	document.getElementById("sizeL").src = document.getElementById("sizeL").src.replace("_on.gif", ".gif");
	
	switch(f){
		case -1: 
			classname = "Small";
			document.getElementById("sizeS").src = document.getElementById("sizeS").src.replace(".gif", "_on.gif");
			break;
		case 0: 
			classname = "Medium";
			document.getElementById("sizeM").src = document.getElementById("sizeM").src.replace(".gif", "_on.gif");
			break;
		case 1: 
			classname = "Large";
			document.getElementById("sizeL").src = document.getElementById("sizeL").src.replace(".gif", "_on.gif");
			break;
	}

	removeClass(document.getElementById("wrapper"), "Large");
	removeClass(document.getElementById("wrapper"), "Medium");
	removeClass(document.getElementById("wrapper"), "Small");
	addClass(document.getElementById("wrapper"), ""+classname);

	createCookie("fontsize",fonts,5);
}

// cookie script http://www.quirksmode.org/js/cookies.html
function createCookie(name,value,days){
	if (days){
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";

	if(value == null){
		value = 1;
	}else if (value > 1)
	{
		value = 1;
	}else if (value < -1)
	{
		value = -1;
	}

	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name){
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}

	return null;
}

function readFontSize(){
	var classname;

	var fonts = readCookie("fontsize");
	
	
	if(fonts != -1 && fonts != 0 && fonts != 1){
		fonts = 0;
	}
	fonts = parseInt(fonts);


	if (fonts > 1)	{
		fonts = 1;
	}

	if (fonts == 0){
		classname = "Medium";
		document.getElementById("sizeM").src = document.getElementById("sizeM").src.replace(".gif", "_on.gif");
	}else if (fonts == -1){
		classname = "Small";
		document.getElementById("sizeS").src = document.getElementById("sizeS").src.replace(".gif", "_on.gif");
	}else if (fonts == 1){
		classname = "Large";
		document.getElementById("sizeL").src = document.getElementById("sizeL").src.replace(".gif", "_on.gif");
	}else{
		classname = "Medium";
		document.getElementById("sizeM").src = document.getElementById("sizeM").src.replace(".gif", "_on.gif");
	}

	removeClass(document.getElementById("wrapper"), "Large");
	removeClass(document.getElementById("wrapper"), "Medium");
	removeClass(document.getElementById("wrapper"), "Small");

	addClass(document.getElementById("wrapper"), ""+classname);
	
	createCookie("fontsize",fonts,5);
}