var buttonids=new Array();
	
	buttonids[0]="button01";
	buttonids[1]="button02";
	buttonids[2]="button03";
	
	buttonids[3]="buttonDD0101";
	buttonids[4]="buttonDD0102";
	buttonids[5]="buttonDD0103";
	buttonids[6]="buttonDD0104";
	buttonids[7]="buttonDD0105";
	buttonids[8]="buttonDD0106";
	buttonids[9]="buttonDD0107";
	
	buttonids[10]="buttonDD0201";
	buttonids[11]="buttonDD0202";
	buttonids[12]="buttonDD0203";
	buttonids[13]="buttonDD0204";
	
	buttonids[14]="buttonDD0301";
	buttonids[15]="buttonDD0302";
	buttonids[16]="buttonDD0303";
	
	buttonids[17]="buttonTR01";
	buttonids[18]="buttonTR02";
	buttonids[19]="buttonTR03";

    buttonids[20]="buttonEM01";
    buttonids[21]="buttonEM02";
	
	
	
	var buttonimgs=new Array();
	var buttonimgs_on=new Array();
	
	buttonimgs[0]="images/btn_main_nav_01.gif";
	buttonimgs[1]="images/btn_main_nav_02.gif";
	buttonimgs[2]="images/btn_main_nav_03.gif";
	
	buttonimgs[3]="images/dd_01_01.gif";
	buttonimgs[4]="images/dd_01_02.gif";
	buttonimgs[5]="images/dd_01_03.gif";
	buttonimgs[6]="images/dd_01_04.gif";
	buttonimgs[7]="images/dd_01_05.gif";
	buttonimgs[8]="images/dd_01_06.gif";
	buttonimgs[9]="images/dd_01_07.gif";
	
	buttonimgs[10]="images/dd_02_01.gif";
	buttonimgs[11]="images/dd_02_02.gif";
	buttonimgs[12]="images/dd_02_03.gif";
	buttonimgs[13]="images/dd_02_04.gif";
	
	buttonimgs[14]="images/dd_03_01.gif";
	buttonimgs[15]="images/dd_03_02.gif";
	buttonimgs[16]="images/dd_03_03.gif";
	
	buttonimgs[17]="images/btn_nav_tr_01.gif";
	buttonimgs[18]="images/btn_nav_tr_02.gif";
	buttonimgs[19]="images/btn_nav_tr_03.gif";

	buttonimgs[20]="images/SignIN_OFF.gif";
	buttonimgs[21]="images/FreeHippomail_OFF.gif";
	
	
	
	buttonimgs_on[0]="images/btn_main_nav_01_on.gif";
	buttonimgs_on[1]="images/btn_main_nav_02_on.gif";
	buttonimgs_on[2]="images/btn_main_nav_03_on.gif";
	
	buttonimgs_on[3]="images/dd_01_01_on.gif";
	buttonimgs_on[4]="images/dd_01_02_on.gif";
	buttonimgs_on[5]="images/dd_01_03_on.gif";
	buttonimgs_on[6]="images/dd_01_04_on.gif";
	buttonimgs_on[7]="images/dd_01_05_on.gif";
	buttonimgs_on[8]="images/dd_01_06_on.gif";
	buttonimgs_on[9]="images/dd_01_07_on.gif";
	
	buttonimgs_on[10]="images/dd_02_01_on.gif";
	buttonimgs_on[11]="images/dd_02_02_on.gif";
	buttonimgs_on[12]="images/dd_02_03_on.gif";
	buttonimgs_on[13]="images/dd_02_04_on.gif";
	
	buttonimgs_on[14]="images/dd_03_01_on.gif";
	buttonimgs_on[15]="images/dd_03_02_on.gif";
	buttonimgs_on[16]="images/dd_03_03_on.gif";
	
	buttonimgs_on[17]="images/btn_nav_tr_01_on.gif";
	buttonimgs_on[18]="images/btn_nav_tr_02_on.gif";
	buttonimgs_on[19]="images/btn_nav_tr_03_on.gif";
	
	buttonimgs_on[20]="images/SignIN_ON.gif";
	buttonimgs_on[21]="images/FreeHippomail_ON.gif";
	
	function setAllClear(){
		setHighlighted(-1);
	}
	function setHighlighted(idx){
		for(var i=0;i<buttonids.length;i++){
			var btnimg=document.getElementById(buttonids[i]);
			if(btnimg&&btnimg.nodeType&&btnimg.nodeType==1&&(btnimg.tagName.toLowerCase()=="img"
                        || btnimg.tagName.toLowerCase()=="input")){
				if(i==idx){
					btnimg.src=buttonimgs_on[i];
				}else{
					btnimg.src=buttonimgs[i];
				}
			}
		}
	}