// JavaScript Document
$(document).ready(function(){
		
		
   $('.leftNavInfo Img').mouseover(function(e){
		var navId = e.target.id;
		 if(navId=='bnt_7'){ return;}
		document.getElementById(navId).style.cursor='pointer';
	     $("#"+navId).attr({ 
          src: "images/"+navId+".jpg"
        });
		 
	 });
  
   $('.leftNavInfo Img').mouseout(function(e){
         var navIdout = e.target.id;
		 document.getElementById(navIdout).style.cursor='pointer';
		 if(navIdout=='bnt_7'){ return ;}
		 if(navIdout==btnId){
		  }else{
			navR = navIdout.replace('2','1');
		     $("#"+navIdout).attr({ 
              src: "images/"+navR+".jpg"
           });
		 }
		 
	 });
   
   $('.leftNavInfo Img').click(function(e){
		var soucer1 = e.target.id;
		btnId = soucer1;
		for(var i=1;i<=6;i++){
		    $("#btn_2"+i).attr({ 
              src: "images/btn_1"+i+".jpg"
           });
		}
		 if(soucer1=='bnt_7'){ return ;}
		  $("#"+soucer1).attr({ 
              src: "images/"+soucer1+".jpg"
           });
		hrefvalue = soucer1.substr(soucer1.length-1);
		window.location.href='course'+hrefvalue+'.html';
	
	 });
	
   

	
  
});