//Check for valid email format
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, please try again.");
		   return false;
		}

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

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

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

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

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

 		 return true;				
	}

function FormValidation(form){
	
	//Validate first name
	if ((form.fname.value==null)||(form.fname.value=="")){
		alert("Please enter your first name.");
		form.fname.focus();
		return false;
	}
	//Validate last name
	else if ((form.lname.value==null)||(form.lname.value=="")){
		alert("Please enter your last name.");
		form.lname.focus();
		return false;
	}

	//Validate email address
	else if ((form.email.value==null)||(form.email.value=="")){
		alert("Please enter your e-mail address.");
		form.email.focus();
		return false;
	}
	else if (echeck(form.email.value)==false){
		form.email.value="";
		form.email.focus();
		return false;
	}
	
	//Validate phone number
	else if ((form.number.value.length < 10) || (form.number.value.length > 14))
	{
		alert("Please enter a valid phone number (xxx-xxx-xxxx).")
		form.number.focus();
		return false;
	}
	model.submit(); //Submit form
	return true; //Form validated
 }