function trim(str){
	while(1){
		if(str.length == 0){
			break;
		}
		if(str.indexOf(" ") == 0){
			str = str.substring(1,str.length);
		}
		else if(str.lastIndexOf(" ",str.length) == (str.length-1)){
			str = str.substring(0,(str.length-1));
		}
		else{
			break;
		}
	}
	return str;
}

function CheckForm(form){
	var EMailFormat = /^[a-zA-Z0-9]+[a-zA-Z0-9\._-]*[a-zA-Z0-9]+@[a-zA-Z0-9]+[a-zA-Z0-9\._-]*[a-zA-Z0-9]+(\.[a-zA-Z]{2,4}$)/;
  var Pass = 1;
  var mesg = "";

  for(i=0;i<form.elements.length;i++){
    var obj = form.elements[i];

    if(obj.type == "text"){
      obj.value = trim(obj.value);
    }

    if(obj.type == "textarea" || obj.type == "text" || obj.type == "file"){
      var mesg      = "";
      var f_require = obj.attributes["require"];
      var f_email   = obj.attributes["email"];
      var f_hint    = obj.attributes["hint"];
      var f_myhint    = obj.attributes["myhint"];

      var require   = (f_require != undefined) ? f_require.value : "no";
      var email     = (f_email != undefined) ? f_email.value : "no";
      var hint      = (f_hint != undefined) ? f_hint.value : "none";
      var myhint    = (f_myhint != undefined) ? f_myhint.value : "none";
	
      if(require == "yes"){
        if(obj.type == "file"){
          mesg = "請上傳相關檔案！";
		    Pass = 0;
        }
        else if(f_email != undefined && !EMailFormat.test(obj.value)){
          mesg = "請檢查您的 E-Mail";
          Pass = 0;
        }
        else if(obj.value.length == 0){
          if(hint != "none"){
            mesg = "請填寫 "+hint+" 欄位";
          }
          else if(myhint != "none"){
            mesg = myhint;
          }
          Pass = 0;
        }

        if(Pass == 0){
          mesg = (mesg.length == 0) ? hint : mesg;
          alert(mesg);
          obj.focus();
          return false;
        }
      }
    }
  }
  return true;
}

function MM_goToURL() { //v3.0
  var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}

function gopage(page){
	Url = location.href;
	var len = Url.length;
	while(Url.indexOf("#",0) !=-1){
		Url  =Url.replace('#','');
	}
	var n = Url.indexOf("?",0);
	if(n==-1){
		//沒任何變數
		//alert(0);
		Url +="?page="+page;
	}else{
		var m = Url.indexOf("page=",0);
		if(m==-1){
			//沒其他變數
			//alert(1);
			var num = n+1;
			var str1 = Url.substr(0,n);
			var str2 = Url.substr(num,len)
			Url = str1;
			Url +="?"+str2;
			Url +="&page="+page;
		}else{
			//alert(2);
			var str1 = Url.substr(0,m);
			var str2 = Url.substr((m+5),len);
			//alert("str2 = "+str2);
			var o = str2.indexOf("&",0);
			//alert("o = "+o);
			if(o!=-1){
				//page後面有變數		
				var str3 = str2.substr((o),str2.length);
				Url = str1;
				Url +="page="+page;
				Url += str3;
			}else{
				//page後面無變數		
				var str3 = page;
				Url = str1;
				Url +="page="+str3;
			}
		}
	}
	//alert(Url);
	location.href=Url;
}

function MM_reloadPage(init) {  //reloads the window if Nav4 resized

  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {

    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}

  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();

}

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 SelectAllItem(form, name){
  SelectItem = eval("form."+name);
  for(i=0;i<form.elements.length;i++){
  	if(form.elements[i].type == "checkbox"){
		  form.elements[i].checked = SelectItem.checked;
	  }
  }
}

function openCenteredWindow(url,height,width,name) {
  var str="height="+height+",innerHeight="+height;
  str+=",width="+width+",innerWidth="+width;
  if (window.screen) {
    var ah=screen.availHeight-30;
    var aw=screen.availWidth-10;

    var xc=(aw-width)/2;
    var yc=(ah-height)/2;

    str+=",left="+xc+",screenX="+xc;
    str+=",top="+yc+",screenY="+yc;
  }
  str+=",scrollbars=yes";
  return window.open(url,name,str);
}

function MM_openBrWindow(theURL,winName,features) { //v2.0 
	window.open(theURL,winName,features); 
} 

//-->