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

function My_findImg(n, d) 
{
    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=My_findImg(n,d.layers[i].document);
            
    if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function My_swapImg() 
{
    var i,j=0,x,a=My_swapImg.arguments; document.My_sr=new Array; 
            
    for(i=0;i<(a.length-2);i+=3)
        if ((x=My_findImg(a[i]))!=null)
        {
            document.My_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];
        }
}
        
function My_swapImgRestore() 
{
    var i,x,a=document.My_sr; 
    for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
        
function My_openBrowser(URL,Name,features) 
{
    window.open(URL,Name,features);
}

/*
objName為物件名稱,strtmp用來做識別

obj.value = obj.value + "<textarea name=\"code\" class=\"c#\">\n請輸入程式碼\n</textarea>\n";
上列這樣可以插入一段文字如右側   <textarea name=\"code\" class=\"c#\">\n請輸入程式碼\n</textarea>\n
*/
function insertText(objName,strtmp)
{
	var obj = document.getElementById(objName);
	
	switch (strtmp)
	{
	    case "cs":
		    obj.value = obj.value + "<textarea name=\"code\" class=\"c#\">\n請輸入程式碼\n</textarea>\n";
                    break;
	    case "javascript":
		    obj.value = obj.value + "<textarea name=\"code\" class=\"javascript\">\n請輸入程式碼\n</textarea>\n";
                    break;
	    case "vb":
		    obj.value = obj.value + "<textarea name=\"code\" class=\"vb\">\n請輸入程式碼\n</textarea>\n";
                    break;
	    case "xml":
		    obj.value = obj.value + "<textarea name=\"code\" class=\"xml\">\n請輸入程式碼\n</textarea>\n";
                    break;
	    case "php":
		    obj.value = obj.value + "<textarea name=\"code\" class=\"php\">\n請輸入程式碼\n</textarea>\n";
                    break;
	    case "sql":
		    obj.value = obj.value + "<textarea name=\"code\" class=\"sql\">\n請輸入程式碼\n</textarea>\n";
                    break;
	}
}

/*
切換隱藏或顯示
*/
function showhide(obj)
{
	if (obj.style.display == "")
	{
		obj.style.display = "none";
	}
	else
	{
		obj.style.display = "";
	}
}

/*
切換隱藏或顯示
*/
function showhide2(obj1,obj2,obj3,obj4)
{
	if (obj1.style.display == "")
	{
		obj1.style.display = "none";
		obj2.style.display = '';
	}
	else
	{
		obj1.style.display = "";
		obj2.style.display = "none";
	}
	
	if (obj3.innerHTML == "關鍵字搜尋") {
	    obj3.innerHTML = "類組搜尋";
	    obj4.value = "";
	}
	else {
	    obj3.innerHTML = "關鍵字搜尋";
	}
}


/*
按鈕無作用
*/
function enableButton(obj)
{		
   if (document.all.a.value.length > 0) 
   {
	   document.all.b.style.disabled = false;
	}
	else
	{	
		document.all.b.style.disabled = true;
	}
}

/*
清除文字
*/
function ClearText(objName1,objName2)
{
//   if (objName2 = "")
//   {
//      var obj1 = document.getElementById(objName1);
//      obj1.value = "";
//   }
//   else
//   {
//      var obj1 = document.getElementById(objName1);
//	     var obj2 = document.getElementById(objName2);
//	
//	     obj1.value = "";
//	     obj2.value = "";	
//   }
	var obj1 = document.getElementById(objName1);
	var obj2 = document.getElementById(objName2);
	
	obj1.value = "";
	obj2.value = "";	
}

function setBoxText(objName,str)
{
	var obj = document.getElementById(objName);
	
	obj.value = str;
}



/*
直接關閉視窗 , 要每個用到此函數的網頁都加上下列程式 , 只引用.js檔會失敗
*/
function closeNow()
{
   top.opener=null;
   top.close();
}