//资讯搜索/产品搜索
function beforeSubmit(SearchForm){
	if(trim(SearchForm.keywords.value) == ""){
		alert("请输入关键字!");
		SearchForm.keywords.focus();
		return false;
		}
	return true;
}

//验证字符
function trim(inputString) {
	if (typeof inputString != "string") { return inputString; }
	var retValue = inputString;
	var ch = retValue.substring(0, 1);
	while (ch == " ") { 
 		retValue = retValue.substring(1, retValue.length);
		ch = retValue.substring(0, 1);
	}
	ch = retValue.substring(retValue.length-1, retValue.length);
	while (ch == " ") {
		retValue = retValue.substring(0, retValue.length-1);
		ch = retValue.substring(retValue.length-1, retValue.length);
	}
	while (retValue.indexOf("  ") != -1) { 
		retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length); 
	}
	return retValue;
}

//客户反馈提交
function checkform(theform){
    var msg = "";
    if (document.feedback.linkman.value == "")
    {
        msg += "请填上您的姓名！ \n";
    }
    if (document.feedback.phone.value == "")
    {
        msg += "请填上您的联系电话！ \n";
    }
    if (document.feedback.remark.value == "")
    {
        msg += "请填上您的内容！ \n";
    }
    if( msg != "" ) {
        str1 = "对不起，由于您的信息不全，\n";
        str1 += "所以没有递交成功！\n\n";
        msg = str1 + msg;
        msg +=  "\n请在填全信息后再递交一次。谢谢！"
        alert(msg);
        return false;
    }
	return true;
}

//选择产品ID
function checkAll(box1) {
    var ids = document.getElementsByName("productid");
	if (ids != null) {
		for (i=0; i<ids.length; i++) {
			var obj = ids(i);
			obj.checked = box1.checked;
		}
	}
}