function trim(theString){
	while(theString.substr(0,1)==" ")
		theString=theString.substr(1);

	while(theString.substr(theString.length-1,1)==" ")
		theString=theString.substr(0,theString.length-1);

	return theString;
}

function chkS(theForm){
	var msg="";
	var j=0;
	var selno=theForm.SelNo.value=trim(theForm.SelNo.value);

	var key=theForm.KeyWord.value=trim(theForm.KeyWord.value);
	key=theForm.KeyWord.value=key=="請輸入關鍵字"?"":key;


	msg+=selno==""?(++j)+". 請選擇類別\n":"";
	msg+=key==""?(++j)+". 請輸入關鍵字\n":"";

	if(msg!=""){
		alert("請檢查以下項目\n\n"+msg);
		return false;
	}

}