function submit_search(){
	var searchObj = document.getElementById("search_keywords");
	if(!searchObj.value){
		//searchObj.value="ÇëÊäÈë¹Ø¼ü´Ê";
		searchObj.focus();
		return;
	}else if(searchObj.value=="ÇëÊäÈë¹Ø¼ü´Ê"){
		searchObj.value="";
		searchObj.focus();
		return;	
	}
	document.searchForm.query_search_keywords.value=searchObj.value;
	document.searchForm.submit();
}
function   search_keywords_keypress(e)   {
    if(document.layers){
    	var   keyChar   =e.which;   
    }else if(document.all){
        var   keyChar   =event.keyCode;   
    }
    if(keyChar=="13"){ 
		submit_search();
    }
}