function checkNumber(){
    var objEv = event.srcElement;
    var numPattern = /([^0-9])/;
    numPattern = objEv.value.match(numPattern);
    if(numPattern != null){
        alert("sorry!");
        objEv.value="";
        objEv.focus();
        return false;
    }
}
// kim gyoung hwa
var old_diva = "";
function clikker( no )
{
	var obj1 = document.all['diva'];
	var obj2 = document.all['divtr'];
	if( parseInt(old_diva) != no ) {
	    if( old_diva!='' ) {
	     obj1[old_diva].className = 'off';
	    	obj2[old_diva].style.display = 'none';
	    }
					   	for(var i=0;i<obj1.length;i++){
					  	obj1[i].className = 'off';
						  }  
						  obj1[no].className = 'on';
						  
						  for(var i=0;i<obj2.length;i++){
						  	obj2[i].style.display = 'none';
						  }
						  obj2[no].style.display = 'block';
					    old_diva = no;
	}else{
	  obj1[no].className = 'off';
	  obj2[no].style.display = 'none';
	  old_diva = '';
	}
}