var loaded = false;
ie = (document.all)? true:false;
ns = (document.layers)? true:false;
ns6 = (document.getElementById)? true:false;//ie5 compatible


function changeLdMode(){
        if(document.layers){
                document.layers['menu2'].moveBy(4,0)
                document.layers['menu3'].moveBy(4,0)
                document.layers['menu4'].moveBy(4,0)
                document.layers['menu5'].moveBy(4,0)
                document.layers['menu6'].moveBy(4,0)
                document.layers['menu12'].moveBy(4,0)
        }
                loaded= 'true';
        if(tid){ clearTimeout(tid);}
}



if(document.images) {
                var Icon1_x = new Image();
                var Icon2_x = new Image();
                var Icon3_x = new Image();
                var Icon4_x = new Image();
                var Icon5_x = new Image();
                var Icon6_x = new Image();
                var Icon7_x = new Image();
                var Icon8_x = new Image();
                var Icon9_x = new Image();
                var Icon10_x = new Image();
                var Icon11_x = new Image();
                var Icon12_x = new Image();

                var Icon1_o = new Image();
                var Icon2_o = new Image();
                var Icon3_o = new Image();
                var Icon4_o = new Image();
                var Icon5_o = new Image();
                var Icon6_o = new Image();
                var Icon7_o = new Image();
                var Icon8_o = new Image();
                var Icon9_o = new Image();
                var Icon10_o = new Image();
                var Icon11_o = new Image();
                var Icon12_o = new Image();

                Icon1_x.src = 'image/left/tab1e_off.gif';
                Icon1_o.src = 'image/left/tab1e_on.gif';
                Icon2_x.src = 'image/left/tab2e_off.gif';
                Icon2_o.src = 'image/left/tab2e_on.gif';
                Icon3_x.src = 'image/left/tab3e_off.gif';
                Icon3_o.src = 'image/left/tab3e_on.gif';
                Icon4_x.src = 'image/left/tab4e_off.gif';
                Icon4_o.src = 'image/left/tab4e_on.gif';
                Icon5_x.src = 'image/left/tab5e_off.gif';
                Icon5_o.src = 'image/left/tab5e_on.gif';
                Icon6_x.src = 'image/left/tab6e_off.gif';
                Icon6_o.src = 'image/left/tab6e_on.gif';
                Icon7_x.src = 'image/left/tab7e_off.gif';
                Icon7_o.src = 'image/left/tab7e_on.gif';
                Icon8_x.src = 'image/left/tab8e_off.gif';
                Icon8_o.src = 'image/left/tab8e_on.gif';
                Icon9_x.src = 'image/left/tab9e_off.gif';
                Icon9_o.src = 'image/left/tab9e_on.gif';
                Icon10_x.src = 'image/left/tab10e_off.gif';
                Icon10_o.src = 'image/left/tab10e_on.gif';
                Icon11_x.src = 'image/left/tab11j_off.gif';
                Icon11_o.src = 'image/left/tab11j_on.gif';
                Icon12_x.src = 'image/left/tab12e_off.gif';
                Icon12_o.src = 'image/left/tab12e_on.gif';

}

function isChange(No) {
        imgNo='Icon' + No
        if(loaded) {
                document.images[imgNo].src = eval(imgNo + "_o.src");
        }
}

function isReturn(No) {
        imgNo='Icon' + No
        if(loaded) {
                document.images[imgNo].src = eval(imgNo + "_x.src");
        }
}

//Get obj

function getTargetObj(target)
{
        var targetObj;
        if(ie)
        {
                targetObj = document.all[target].style;
        }
        else if(ns)
        {
                targetObj = document.layers[target];
        }
        else if(ns6)
        {
                targetObj = document.getElementById(target).style;
        }
        return (ie || ns || ns6)? targetObj:false;
}

var tid
var selectedNo ='2'
var hideSwich = 'false'

function showMenu(No){
        if(loaded){
                hideSwich = 'true'
                hideMenu();
                layerName ='menu' + No;
                selectedNo = No;
                var obj = getTargetObj(layerName);
                if(ns) obj.visibility='show';
                else if(ie || ns6) obj.visibility='visible';
                isChange(No)
        }
}

function hideMenu(){
        //selectedNo is showMenu.
        layerName = 'menu' + selectedNo;
        var obj = getTargetObj(layerName);
        if(tid){ clearTimeout(tid);}
        if (hideSwich == 'true'){
                if(ns) obj.visibility = "hide";
                else if(ie || ns6) obj.visibility='hidden';
                isReturn(selectedNo);
        }
}

function menuCloseTimer(No){
        if(loaded=='true'){
                selectedNo = No;
                hideSwich = 'true'
                if(tid){ clearTimeout(tid);}
                tid=setTimeout('hideMenu();',600);
        }
}

function menuCloseTimer(No){
        if(loaded){
                selectedNo = No;
                hideSwich = 'true'
                if(tid){ clearTimeout(tid);}
                tid=setTimeout('hideMenu();',600);
        }
}

function swichOFF(){
        hideSwich = 'false'
}