/**
 * DHTML email validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */

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("Please enter a valid email address")
	   return false
	}

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
	   alert("Please enter a valid email address")
	   return false
	}

	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
	    alert("Please enter a valid email address")
	    return false
	}

	 if (str.indexOf(at,(lat+1))!=-1){
	    alert("Please enter a valid email address")
	    return false
	 }

	 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
	    alert("Please enter a valid email address")
	    return false
	 }

	 if (str.indexOf(dot,(lat+2))==-1){
	    alert("Please enter a valid email address")
	    return false
	 }
	
	 if (str.indexOf(" ")!=-1){
	    alert("Please enter a valid email address")
	    return false
	 }

		 return true					
}
/* Enquiry Form Scripts */
function checkForm() 
{
	if (document.form.nm_name.value=='') 
	{
		alert("Please enter your name")
		document.form.nm_name.focus();
		return false;
	}
	if (document.form.nm_email.value=='') 
	{
		alert("Please enter your email address")
		document.form.nm_email.focus();
		return false;
	}
	if (echeck(document.form.nm_email.value)==false)
	{
		document.form.nm_email.focus();
		return false;
	}		
	if (document.form.nm_tel.value=='') 
	{
		alert("Please enter your telephone number")
		document.form.nm_tel.focus();
		return false;
	}
	if (document.form.nm_comment.value=='') 
	{
		alert("Please enter your comment")
		document.form.nm_comment.focus();
		return false;
	}
	
}
/* Login Form Scripts */
function checkLoginForm() 
{
	if (document.form.username.value=='') 
	{
		alert("Please enter your username")
		document.form.username.focus();
		return false;
	}
	if (document.form.password.value=='') 
	{
		alert("Please enter your password")
		document.form.password.focus();
		return false;
	}
}