function searchprod(){
	searchstr = document.all.searchname.value;
	searchstr = searchstr.replace(/(^\s*)|(\s*$)/g, "");
	if(searchstr.length > 0){
		document.search.prodname.value = searchstr;
		document.search.submit();
	}
	else{
		alert("查询关键字不能为空！");
	}
}