function Change_HtmlDiv(obj_id){

    if(document.getElementById){
      if(document.getElementById(obj_id).style.display == "block"){
        
      }else{
        document.getElementById("1").style.display = "none";
        document.getElementById("2").style.display = "none";
        document.getElementById("3").style.display = "none";
		document.getElementById("4").style.display = "none";
		document.getElementById("5").style.display = "none";
		document.getElementById("6").style.display = "none";
		document.getElementById("7").style.display = "none";
		document.getElementById("8").style.display = "none";
        document.getElementById(obj_id).style.display = "block";
      }
    }
  }