function Show_div($z,$kk){

	 for($i=1;$i<=$kk;$i++){
		 $div_name  =  "div_"+$i;
		 $title_name  =  "title_"+$i;
		 $object    = document.getElementById($div_name);		 
		 $objects    = document.getElementById($title_name);		 
		 if ($i == $z){
			   $object.style.display = 'block';
			   $objects.className = 'show_class';
		 }
		 else{
			   $object.style.display = 'none';
			   $objects.className = 'none_class';
		 }
		 
	 }
 }