var currentitem=1;
function displayprevrelateditem() {
	tmpitem=currentitem-1;
	newtmpitem=currentitem+2;
	if (document.getElementById('ri'+tmpitem)!=null) {
	  document.getElementById('ri'+newtmpitem).style.display='none';
	  document.getElementById('ri'+tmpitem).style.display='';
	  currentitem--;
	}
}
function displaynextrelateditem() {
	tmpitem=currentitem+3;
	if (document.getElementById('ri'+tmpitem)!=null) {
	  document.getElementById('ri'+currentitem).style.display='none';
	  document.getElementById('ri'+tmpitem).style.display='';
	  currentitem++;
	}
}
function hidedata(itemname) {
	document.getElementById(itemname).style.display='none';
}
function displaydata(itemname) {
	document.getElementById(itemname).style.display='';
}
function renderphonevalidationbyclick(e) 
{
	
    	var key;
	if(window.event) // IE
	  {
	  key = e.keyCode;
	  }  
	else if(e.which) // Netscape/Firefox/Opera
	  {
	  key = e.which;
	  }
	 
    //alert(key);
    // Key 8 - Backspace
    // Key 17 - Ctrl
    // Key 107 - + Sign
    // Key 9 - Tab
    // Key 46 - Delete
    // Key 111 - / Sign
    // Key 32 - Space
    // Key 188 - Comma
    // Key 16 - Shift
    // Key 189 - Dash 
    // Key 35 - Home
    // Key 36 - End
    // Keys 48-57 and 97-105 - Numeric Digits
    if ((key <48 || key >57)&&(key<95 || key>105 )&&(key!=8)&&(key!=46)&&(key!=111)&&(key!=32)&&(key!=37)&&(key!=35)&&(key!=36)&&(key!=39)&&(key!=188)&&(key!=189)&&(key!=16)&&(key!=9)&&(key!=107))
      {
		 if (window.event) //IE
			window.event.returnValue = false;     
		else //Firefox
			e.preventDefault();

	  }
	}
	function isValidEmail(strEmail){
	  validRegExp = /^[^@]+@[^@]+.[a-z]{2,}$/i;
		if (strEmail.search(validRegExp) == -1) 
	   {
		  return false;
		} 
		return true; 
	}
  function kd(item) {
	  document.getElementById(item).style.display='none';
  }
  function submitcontactform() {
	  var firstname = document.getElementById('firstname').value;
	  var lastname = document.getElementById('lastname').value;
	  var emailaddress = document.getElementById('emailaddress').value;
	  var subject = document.getElementById('subject').value;
	  var phone = document.getElementById('phone').value;
	  var notes = document.getElementById('notes').value;
	  submitform=true;
	  if (firstname=='') {
		  document.getElementById('fn').style.display='';
		  submitform=false;
	  }
	  if (lastname=='') {
		  document.getElementById('ln').style.display='';
		  submitform=false;
	  }
	  if (!isValidEmail(emailaddress)) {
		  document.getElementById('ea').style.display='';
		  submitform=false;
	  }
	  /*
	  if (phone=='') {
		  document.getElementById('ph').style.display='';
		  submitform=false;
	  }
	  if (subject=='') {
		  document.getElementById('su').style.display='';
		  submitform=false;
	  }
	  */
	  if (notes=='') {
		  document.getElementById('no').style.display='';
		  submitform=false;
	  }
	  if (submitform) {
		  document.getElementById('contactform').style.display='none';
		  document.getElementById('contactformty').style.display='';
		  sUrl = "/include/libs/sendmail.asp?f="+firstname+"&l="+lastname+"&e="+emailaddress+"&p="+phone+"&s="+subject+"&n="+notes;
  	 	  var request = YAHOO.util.Connect.asyncRequest('GET', sUrl, { success:successHandler, failure:failureHandler, cache:false });					
	  } else {
		  return false;
	  }
  }
  function successHandler(o) {
  }
  function failureHandler(o) {
  }