function search_onfocus() {
    if (document.getElementById("q").value == "Search...") {
        document.getElementById("q").value = "";
    }
}
function search_onblur() {
    if (document.getElementById("q").value == "") {
        document.getElementById("q").value = "Search...";
    }
}
function submit_check() {
    if (document.getElementById("q").value == "Search...") 
	{
        alert("Please Input Your Keywords.");
		document.getElementById("q").value = "";
    } 
	else {
	document.searchform.submit();}
}

// JavaScript Document
<!--
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];}}
}
//-->
MM_preloadImages('/images/common/main_bg.gif','/images/top_bg.gif','/images/common/main_bg.gif','/images/common/top_bg2.jpg','/images/common/main_bg.gif','/images/common/category_left_mac.gif','/images/common/category_left_mac.gif','/images/common/product_list_bg.gif','/images/common/title_bg.gif','/images/common/category_bg.gif','/images/common/black_arrow.gif','/images/common/category_bg_mac.gif','/images/common/mac_list_bg.gif','/images/common/mac_list_bottom.gif','/images/common/product_list_bottom.gif','/images/t_menu_bg.gif','/images/t_menu_left.gif','/images/t_menu_right.gif','/images/t_menu_h.gif','/images/t_menu_on.gif')

function change_pic(_this,x){
	_this.src= x;
}

function change_class(_this,x){
	_this.className=x;
}

function change_con(_this,x1,x2){
	if(document.getElementById(x2).style.display=="none"){
		document.getElementById(x2).style.display="";
		document.getElementById(x1).style.display="none";
		_this.src="images/common/arrow_up.gif";
		_this.alt="Shrink";
	}
	else{
		document.getElementById(x2).style.display="none";
		document.getElementById(x1).style.display="";
		_this.src="images/common/arrow_down.gif";
		_this.alt="Expand";
	}
}

function tab_effect(tab,content,x){
	for(i=1;i<=x;i++){
		document.getElementById("tab"+i).className="";
		document.getElementById("content"+i).style.display="none";
	}
	document.getElementById(tab).className="tab_on";
	document.getElementById(content).style.display="";
}

function tab_effect02(tab,content,x){
	for(i=1;i<=x;i++){
		document.getElementById("tab0"+i).className="";
		document.getElementById("content0"+i).style.display="none";
	}
	document.getElementById(tab).className="tab_on";
	document.getElementById(content).style.display="";
}

function tab_effects(tab,content,a,b){
	for(i=a;i<=b;i++){
		document.getElementById("tab"+i).className="";
		document.getElementById("content"+i).style.display="none";
	}
	document.getElementById(tab).className="tab_on";
	document.getElementById(content).style.display="";
}

function for_download(but,list){
	if(document.getElementById(list).style.display=="none"){
		document.getElementById(but).src="images/common/download_hover.gif";
		document.getElementById(list).style.display="";
	}
	else{
		document.getElementById(but).src="images/common/download.gif";
		document.getElementById(list).style.display="none";
	}
}

// for family download and buy choose
function choosen(_this){
	document.getElementById("links").href=_this.value;
}
// for all ad
tab1="tab1";
content1="content1";
tab2="tab2";
content2="content2";


function openShutManager(oSourceObj,oTargetObj,shutAble,oOpenTip,oShutTip){
var sourceObj = typeof oSourceObj == "string" ? document.getElementById(oSourceObj) : oSourceObj;
var targetObj = typeof oTargetObj == "string" ? document.getElementById(oTargetObj) : oTargetObj;
var openTip = oOpenTip || "";
var shutTip = oShutTip || "";
if(targetObj.style.display!="none"){
   if(shutAble) return;
   targetObj.style.display="none";
   if(openTip && shutTip){
    sourceObj.innerHTML = shutTip; 
   }
} else {
   targetObj.style.display="";
   if(openTip && shutTip){
    sourceObj.innerHTML = openTip; 
   }
}
}