// JavaScript Document
function isCharsInBag (s,bag)
{ 
	var i,c;
	for (i = 0; i < s.length; i++)
	{ 
		c = s.charAt(i);
		if (bag.indexOf(c) > -1) 
		return c;
	}
	return "";
}
function ischinese(s)
{
	var errorChar;
	var badChar = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789 ><,'<>{}?/+=|\\′\":;~!#$%()`";
	errorChar = isCharsInBag(s, badChar)
	if (errorChar != "" ) {
		return false;
	} 
	return true;
}

function check_email(address)
{
	if ((address == "") || (address.indexOf ('@') == -1) || (address.indexOf ('.') == -1))
	return false;
	return true;
}

function len(txt,i,j)
{
	var len = txt.replace(/[\n\r]/g,"");
	var len = len.length;
	if(len < i) {
		return false;
	}
	else if(len > j) {
		return false;
	}
	else {
		return true;
	}
}
function check(obj)
{
	if(obj.value=="请详细填写您的意见或建议，以便我们给于准确答复！")
		obj.value="";
}

function IsNum(argValue)
{
	var flag=false;
	var length=argValue.length;
	for (var iIndex=0;iIndex<length;iIndex++)
	{
		if((argValue.substr(iIndex,1)>="0") && (argValue.substr(iIndex,1)<="9"))
			flag=true;
		else {
			flag=false;
			break;
		}
	}
	return flag;
}
function form1_onsubmit(obj,leibie)
{
	if(leibie==1)
	{
		 if(!len(obj.product.value,i=6,j=20) || IsNum(obj.product.value))
		 {
			 alert("请输入正确的公司名称！");
			 obj.product.focus();
			 return false;
		 }
	}
	if(leibie==2)
	{
		 if(!obj.num.value)
		{
				alert("请输入正确的产品数量");
				obj.num.focus();
				return false;
		}
		if (!len(obj.num.value,i=1,j=11) || !IsNum(obj.num.value))
		{
				alert("请输入正确的产品数量");
				obj.num.value="";
				obj.num.focus();
				return false;
		}
	}
 if(!ischinese(obj.xingming.value))
 {
	 alert("姓名只能是中文");
	 obj.xingming.value=""
	 obj.xingming.focus();
	 return false;
 }
 if(!len(obj.xingming.value,i=2,j=15))
 {
	 alert("请输入正确姓名！");
	 obj.xingming.value=""
	 obj.xingming.focus();
	 return false;
 }	 
if(!obj.address.value)
 {
	 alert("请输入地址！");
	 obj.address.focus();
	 return false;
 }
 
 if (!len(obj.address.value,i=6,j=40)  || IsNum(obj.address.value))
	{
		alert("请输入正确的地址！");
		obj.address.focus();
		return false;
	}
if(!obj.lianxi.value)
{
		alert("请输入正确的电话号码");
		obj.lianxi.focus();
		return false;
}
if (!len(obj.lianxi.value,i=11,j=11) || !IsNum(obj.lianxi.value))
	{
		alert("请输入正确的电话号码");
		obj.lianxi.value="";
		obj.lianxi.focus();
		return false;
	}
	
if(!check_email(obj.email.value))
 {
	 alert("请输入正确的邮箱！");
	 obj.email.focus();
	 return false;
	 }

}