function checkspace(astr)

{
	bstr="";
	cd=astr.length;
	for(i=0;i<cd;i++)
 	{ 
		if(astr.charAt(" ")>=0)
    		{bstr=bstr+" ";}
 	}

	if(bstr==astr)
 	{
		return true;
	}
	else{
		return false;
	}
}


function checkemail(qemail)

{

	if(qemail.charAt(0)=="." ||qemail.charAt(0)=="@"||qemail.indexOf('@', 0) == -1 || qemail.indexOf('.', 0) == -1 || qemail.lastIndexOf("@")==qemail.value.length-1 || qemail.lastIndexOf(".")==qemail.value.length-1)
	return true;

 }


function checkGuest() {

if(checkspace(form1.Name.value)){
    alert ("请输入姓名!");
    form1.Name.value="";
	form1.Name.focus();
	return false;
}

if(checkspace(form1.Content.value)){
    alert ("留言内容不能为空!!");
    form1.Content.value="";
	form1.Content.focus();
	return false;
}
form1.submit1.disabled=true;
}