// JavaScript Document
function validate(){
//check if name field is not left blank.

if(document.form1.name.value==""){
alert("The Name field is empty.");
form1.name.focus();
return (false);
}



if(document.form1.address.value==""){
alert("The Address field is empty.");
form1.address.focus();
return (false);
}

if(document.form1.city.value==""){
alert("The City field is empty.");
form1.city.focus();
return (false);
}

if(document.form1.state.value==""){
alert("The State field is empty.");
form1.state.focus();
return (false);
}

if(document.form1.zipcode.value==""){
alert("The Zipcode field is empty.");
form1.zipcode.focus();
return (false);
}

	
if(document.form1.email.value==""){
alert("The Email field is empty.");
form1.email.focus();
return (false);
}

	if (document.form1.email.value != "")
	{
		var str=document.form1.email.value;
	    var at="@";
		var dot=".";
		var lat=str.indexOf(at);
		var lstr=str.length;
		var ldot=str.indexOf(dot);
		if (str.indexOf(at)==-1)
		{
		   alert("Invalid E-mail ID");
		   document.form1.email.value = "";
		   document.form1.email.focus();
		   return false;
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr)
		{
		   alert("Invalid E-mail ID");
		   document.form1.email.value = "";
		   document.form1.email.focus();
		   return false;
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr)
		{
		    alert("Invalid E-mail ID");
			document.form1.email.value = "";
			document.form1.email.focus();
		    return false;
		}

		 if (str.indexOf(at,(lat+1))!=-1)
		 {
		    alert("Invalid E-mail ID");
			document.form1.email.value = "";
			document.form1.email.focus();
		    return false;
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot)
		 {
		    alert("Invalid E-mail ID");
			document.form1.email.value = "";
			document.form1.email.focus();
		    return false;
		 }

		 if (str.indexOf(dot,(lat+2))==-1)
		 {
		    alert("Invalid E-mail ID");
			document.form1.email.value = "";
			document.form1.email.focus();
		    return false;
		 }
		
		 if (str.indexOf(" ")!=-1)
		 {
		    alert("Invalid E-mail ID");
			document.form1.email.value = "";
			document.form1.email.focus();
		    return false;
		 }

	}


if(document.form1.message.value==""){
alert("The Message field is empty.");
form1.message.focus();
return (false);
}


}