String.prototype.ByteCount = function()
{
	txt = this.replace(/(<.*?>)/ig,'');
	txt = txt.replace(/([\u0391-\uFFE5])/ig, '11');
	var count = txt.length;
	return count;
}
String.prototype.trim = function()
{
	// 用正则表达式将前后空格
	// 用空字符串替代。
	return this.replace(/(^\s*)|(\s*$)/g, "");
}
function titlesjs(bb)
{
	if(bb.value.trim().ByteCount()=="")
	{
		document.getElementById("titles2").innerHTML="请输入标题!";
		document.getElementById("titles2").className="yangno";
		return false;
	}
	else
	{
		document.getElementById("titles2").innerHTML="正确";
		document.getElementById("titles2").className="yangyes";
	}
}
function namessjs(bb)
{
	if(bb.value.trim().ByteCount()=="")
		{
			document.getElementById("namess2").innerHTML="请输入联系人！";
			document.getElementById("namess2").className="yangno";
			return false;
		}
		else
	{
		document.getElementById("namess2").innerHTML="正确";
		document.getElementById("namess2").className="yangyes";
	}
}
function teljs(bb)
{
	if(bb.value.trim().ByteCount()=="")
		{
			document.getElementById("tel2").innerHTML="请输入联系电话！";
			document.getElementById("tel2").className="yangno";
			return false;
		}
		else
	{
		if (bb.value.search && bb.value.search(new RegExp("^([-!0-9])","gi"))<0)
		{
			document.getElementById('tel2').innerHTML="请输入正确联系电话！";
			  document.getElementById("tel2").className="yangno";
			  document.myform.tel.value="";
			  return false;
		}
		else
		{
		document.getElementById("tel2").innerHTML="正确";
		document.getElementById("tel2").className="yangyes";
		}
	}
}
function emailjs(va)
{
	if(va.value.trim().ByteCount()=="")
		{document.getElementById('email2').innerHTML="";}
	else
	{
		if (va.value.charAt(0)=="." ||  va.value.charAt(0)=="@"|| va.value.indexOf('@', 0) == -1 || va.value.indexOf('.', 0) == -1 || va.value.lastIndexOf("@") ==va.value.length-1 || va.value.lastIndexOf(".")==va.value.length-1)
		{
			  document.getElementById('email2').innerHTML="请输入正确E_mail！";
			  document.getElementById("email2").className="yangno";
			  document.myform.email.value="";
			  return false;
		}
		else
			{
			document.getElementById('email2').innerHTML="";
			}
	}
}
function prices(bb)
{
	if(bb.value.trim().ByteCount()=="")
		{document.getElementById('price2').innerHTML="";}
	else
	{
		if (bb.value.search && bb.value.search(new RegExp("^([-!0-9])","gi"))<0)
		{
			document.getElementById('price2').innerHTML="价格是数字！";
			  document.getElementById("price2").className="yangno";
			  document.myform.email.value="";
			  return false;
		}
		else
		{
		document.getElementById("price2").innerHTML="";
		}
	}
}
function squares(bb)
{
	if(bb.value.trim().ByteCount()=="")
		{document.getElementById('square2').innerHTML="";}
	else
	{
		if (bb.value.search && bb.value.search(new RegExp("^([-!0-9])","gi"))<0)
		{
			document.getElementById('square2').innerHTML="面积是数字！";
			  document.getElementById("square2").className="yangno";
			  document.myform.email.value="";
			  return false;
		}
		else
		{
		document.getElementById("square2").innerHTML="";
		}
	}
}
function checkfabutj(bb)
{
	if(bb.titles.value.trim().ByteCount()=="")
	{
		document.getElementById("titles2").innerHTML="请输入标题!";
		document.getElementById("titles2").className="yangno";
		return false;
	}
	if(bb.namess.value.trim().ByteCount()=="")
		{
			document.getElementById("namess2").innerHTML="请输入联系人！";
			document.getElementById("namess2").className="yangno";
			return false;
		}
	if(bb.tel.value.trim().ByteCount()=="")
		{
			document.getElementById("tel2").innerHTML="请输入联系电话！";
			document.getElementById("tel2").className="yangno";
			return false;
		}
}