image = new Array();

        image[0] = new Image();
        image[0].src = "images/shop_01.jpg";
		image[1] = new Image();
        image[1].src = "images/shop_02.jpg";
		image[2] = new Image();
        image[2].src = "images/shop_03.jpg";
		image[3] = new Image();
        image[3].src = "images/shop_04.jpg";
		image[4] = new Image();
        image[4].src = "images/shop_05.jpg";
		image[5] = new Image();
        image[5].src = "images/shop_06.jpg";
		image[6] = new Image();
        image[6].src = "images/shop_07.jpg";
		image[7] = new Image();
        image[7].src = "images/shop_map.gif";


        function Img_2(n){
            if(document.images){
                document.myImg_2.src=image[n-1].src;
            }
        }


/* focus
----------------------------------------------- */

function focusColor(i){
	i.style.borderColor='#333333';
	i.style.backgroundColor='#eeeeee';
}
function blurColor(i){
	i.style.borderColor='#999999';
	i.style.backgroundColor='#ffffff';
}

/* form
----------------------------------------------- */
<!-- dis start---!> 
/**
@Parameters  num:Total
@Parameters  strname:Id Prefix name  
@Parameters  strnum:Id The corresponding figures
Examples:dis(1,'sall',2);
*/
function dis(num,strname,strnum){
   var name=strname+strnum;
	   var disname=document.getElementById(name).style.display;
	   if(disname=="block"){
	    document.getElementById(name).style.display="none";
	   }else{
       for(var i=1;i<=num;i++){
	       if(strnum==i){
		   var idname=strname+i;
	       document.getElementById(idname).style.display="block";
		   document.getElementById(idname).style.backgroundimage="images/navi/sbm_off.gif";
		   }else{
		   var idname=strname+i;
	       document.getElementById(idname).style.display="none";
	       }
	   }
	 }
  }
<!--dis end---!>
/**  reset 
-----------------------------------------------------------------------*/
function resetBtn(form){
  form.reset();
  return false;
}
/** back history
----------------------------------------------------------------------*/
function back(num){
 num.back();
 return false;
}
/**  check Form
---------------------------------------------------------------------*/
function checkForm(){
    var username=document.checkform.Name.value;
	var email=document.checkform.Email.value;
	var message=document.checkform.Message.value;
	if(username=="" || email=="" || message==""){
	  return false;
	}


}

function linkmap(num){
	if(num==1){
	location.href='map/index.html'
	
	}else{
	location.href='../map/index.html'
		}
	}