//将游标定位于某个栏
function focusto(x){    
	document.commission.elements(x).focus();
}

function CheckForm(){
	var	d	= document.commission;
	if(d.title.value==""){
		alert("咨询标题不能为空！");
		focusto("title");
		return;
	}
	
	if(d.province.value==""){
		alert("请选择服务地区！");
		focusto("province");
		return;
	}
	
	if(d.username.value==""){
		alert("用户名不能为空！");
		focusto("username");
		return;
	}
	
	if(d.customer.value == ""){
		alert("联系人姓名不能为空！");
		focusto("customer");
		return;
	}
	
	if(d.email.value.length > 0){
		if(!/[\w]{1,}@[\w]{1,}[\.][a-zA-Z]{2,}/.test(d.email.value)){
			alert("E-mail格式不正确\n格式为：a@a.com");
			d.email.value="";
			focusto("email");
			return;
		}
	}
	
	if(d.phone.value=="" && d.mobile.value==""){
		alert("联系电话和手机至少填写一项！");
		focusto("phone");
		return;
	}
	
	var reg=/^([0-9]|[\-])+$/g;
	if(d.phone.value.length>0 && d.phone.value.length<7 || d.phone.value.length>18){
		alert("电话长度不正确");
		d.phone.value = ""
		focusto("phone");
		return;
	}
	else if(d.phone.value.length>0){
		if(!reg.exec(d.phone.value)){
			alert("电话格式不正确\n格式为：010-51709151(-8888)，括号内为分机号，可不填");
			d.phone.value = ""
			focusto("phone");
			return;
		}
	}
	reg=/^((\+86){0,1})(13|15)[0-9]{9}/;
	if(d.mobile.value.length>0){
		if(!reg.exec(d.mobile.value)){
			alert("手机格式不正确\n格式为：(+86)13/1588888888，括号内为国家编号，可不填");
			d.mobile.value = ""
			focusto("mobile");
			return;
		}
	}
	
	//reg=/(^[1-9]{1}[\d]{14})|(^[1-9]{1}([\d]{17})|([\d]{16}x))/g;
	if(d.IDcard.value != ""){
		if(d.IDcard.value.length != 15 && d.IDcard.value.length != 18){
			alert("身份证不正确");
			d.IDcard.value="";
			focusto("IDcard");
			return;
		}
	}
	
	if(d.content.value==""){
		alert("案件描述不能为空！");
		focusto("content");
		return;
	}
	
	if(d.content.value.length>1500){
		alert("案件描述不能超过1500字！");
		focusto("content");
		return;
	}
	
	d.submit();
}