function TopenterCheck(myform) {
	if (window.event && window.event.keyCode == 13){
		go();
	} else
	return true;
}	

function go(){
	if(trim(document.Top.Query.value) != ""){
		document.Top.action = "/search/Search_Results_All.jsp";
		document.Top.submit();
	}else{
		alert('Please, Input search keyword.');
		document.Top.Query.focus();
		return false;
	}
}

function trim(str) {
	var count = str.length;
	var len = count;                
	var st = 0;
	
	while ((st < len) && (str.charAt(st) <= ' ')) st++;
	
	while ((st < len) && (str.charAt(len - 1) <= ' ')) len--;
	
	return ((st > 0) || (len < count)) ? str.substring(st, len) : str ;   
}