function validate_business() {
	if(document.forms.submit_form.name.value == "") {
		alert("Please enter a name for the business");
		document.forms.submit_form.name.focus();
		return false;
	}

	if(isNaN(document.forms.submit_form.phone.value)) {
		alert("Please enter a valid phone number");
		document.forms.submit_form.phone.focus();
		return false;
	}

	if(document.forms.submit_form.phone.value.length < 10) {
		alert("Please enter a valid phone number");
		document.forms.submit_form.phone.focus();
		return false;
	}

	if(document.forms.submit_form.address1.value == "") {
		alert("Please enter a valid address");
		document.forms.submit_form.address1.focus();
		return false;
	}

	if(document.forms.submit_form.postalcode.value == "") {
		alert("Please enter a a valid postal code number");
		document.forms.submit_form.postalcode.focus();
		return false;
	}

	if(document.forms.submit_form.description.value == "") {
		alert("Please enter a description for the business");
		document.forms.submit_form.description.focus();
		return false;
	}

	if(document.forms.submit_form.email.value == "") {
		//alert("Please enter your email address.\nWe will need it in order to contact you.");
		//document.forms.submit_form.email.focus();
		//return false;
	} else {

		if(!validate_email(document.forms.submit_form.email.value)) {
			return false;
		}
	}

	return true;
}


function validate_email(address) {
	if (echeck(address) == false){
		return false;
	}

	return true;
}



function echeck(str) {
	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 address");
	   return false;
	}

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
	   alert("Invalid e-mail address");
	   return false;
	}

	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
	    alert("Invalid e-mail address");
	    return false;
	}

	if (str.indexOf(at,(lat+1))!=-1){
	    alert("Invalid e-mail address");
	    return false;
	}

	 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
	    alert("Invalid e-mail address");
	    return false;
	 }

	 if (str.indexOf(dot,(lat+2))==-1){
	    alert("Invalid e-mail address");
	    return false;
	 }
		
	 if (str.indexOf(" ")!=-1){
	    alert("Invalid e-mail address");
	    return false;
	 }

	 return true;		
}