// JavaScript Document

function toggle_btn(btn)
{
	if(btn.className=='btn-open')
	{
		btn.className='btn-close'; 
		btn.innerHTML='click to close'
	}
	else{
		btn.className='btn-open'; 
		btn.innerHTML='click to open'
	}
}

function toggle_footer_btn(btn)
{
	if(btn.className=='btn-footer_open')
	{
		btn.className='btn-footer_close'; 
		btn.innerHTML='click to close'
	}
	else{
		btn.className='btn-footer_open'; 
		btn.innerHTML='click to open'
	}
}

function validate_enquiry()
{
	frm = document.enquiry_form
	emailID = frm.email
	error = ""
	
	if (frm.name.value=="")
		error += "\n\r- Your Name"
	
	if ((emailID.value==null)||(emailID.value==""))
		error += "\n\r- A correctly formatted Email Address"
	else if (echeck(emailID.value)==false)
		error += "\n\r- A correctly formatted Email Address"
		
	if(error)
		alert("Please specify:"+error)
	else
		frm.submit()
}

function validate_mailing_list()
{
	frm = document.join_mailing_list_form
	emailID = frm.email
	error = ""
	
	if ((emailID.value==null)||(emailID.value==""))
		error += "\n\r- A correctly formatted Email Address"
	else if (echeck(emailID.value)==false)
		error += "\n\r- A correctly formatted Email Address"
		
	if(error)
		alert("Please specify:"+error)
	else
		frm.submit()
}

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)
	   return false

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr)
	   return false

	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr)
		return false

	 if (str.indexOf(at,(lat+1))!=-1)
		return false

	 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot)
		return false

	 if (str.indexOf(dot,(lat+2))==-1)
		return false

	 if (str.indexOf(" ")!=-1)
		return false
		
	 return true					
}