function validate_required(field,alerttxt){
	with(field){
		if(value==null||value==""){alert(alerttxt);return false;}
		else return true;
	}
}
function validate_form(thisform){
	with(thisform){
		if(validate_required(q, "请输入需要查找的英文缩写词") == false){//Please enter something to search for
			q.style.backgroundColor = "#FFFF99";
			q.focus();
			return false;
		}
	}
}
function focus_form(){
	with(document.findform){
		q.focus(); q.select();
	}
}