// SEARCH FOCUS
function searchfocus(inputField, focus){
	if (focus){
		if(inputField.value=="Enter keyword"){
			inputField.value = "" ;
			//inputField.className = "" ;
		}
	} else {
		if(inputField.value=="Enter keyword" || inputField.value=="") {
			inputField.value = "Enter keyword" ;
			//inputField.className = "searchgrey" ;
		}
	} 
}

function showDiv(divId) {
    if (divId.length < 1) { return; }
    var dd = document.getElementById(divId);
    dd.style.display = "block";
}

function hideDiv(divId) {
    if (divId.length < 1) { return; }
    document.getElementById(divId).style.display = "none";
}


var cX = 0; var cY = 0; var rX = 0; var rY = 0;
function UpdateCursorPosition(e) { cX = e.pageX; cY = e.pageY; }
function UpdateCursorPositionDocAll(e) { cX = event.clientX; cY = event.clientY; }
if (document.all) { document.onmousemove = UpdateCursorPositionDocAll; }
else { document.onmousemove = UpdateCursorPosition; }
function AssignPosition(d) {
    if (self.pageYOffset) {
        rX = self.pageXOffset;
        rY = self.pageYOffset;
    }
    else if (document.documentElement && document.documentElement.scrollTop) {
        rX = document.documentElement.scrollLeft;
        rY = document.documentElement.scrollTop;
    }
    else if (document.body) {
        rX = document.body.scrollLeft;
        rY = document.body.scrollTop;
    }
    if (document.all) {
        cX += rX;
        cY += rY;
    }
    d.style.left = (cX + 10) + "px ";
    d.style.top = (cY + 10) + "px";
}
function HideContent(d) {
    if (d.length < 1) { return; }
    document.getElementById(d).style.display = "none";
}
function ShowContent(d) {
    if (d.length < 1) { return; }
    var dd = document.getElementById(d);
    AssignPosition(dd);
    dd.style.display = "block";
}
function ReverseContentDisplay(d) {
    if (d.length < 1) { return; }
    var dd = document.getElementById(d);
    AssignPosition(dd);
    if (dd.style.display == "none") { dd.style.display = "block"; }
    else { dd.style.display = "none"; }
}
function textFieldCheck (formElement, mandatory) {
	check=false;
	message='';
		
	for (i in mandatory) {
		if (document.forms[formElement.id].elements[i].value=='') {
			message=message+mandatory[i]+', ';
    		//alert ('One or more mandatory fields have not been completed. Please correct this to continue.');
    		check=false;
    		//break;
        }
        else {
        	check=true;
        }
	}
	if (message!='') {
		message='The following required fields have not been completed: \n\n'+message;
		message_object=new String(message);
		message=message_object.substr(0,message_object.length-2);
		alert(message);
		check=false;
	}
	return check;
}
function emailCheck (emailStr) {
	
	var emailPat=/^(.+)@(.+)$/
	//var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]\\/\\?\\!\\£\\$\\%\\&\\#\\~\\*\\'\\|\\`\\=\\¬\\¦\\}\\{\\+\\^"
	//var validChars="\[\\s" + specialChars + "\]"
	var validChars="[a-zA-Z0-9_-]"
	var quotedUser="(\"[^\"]*\")"
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
	var atom=validChars + '+'
	var word="(" + atom + "|" + quotedUser + ")"
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
	var matchArray=emailStr.match(emailPat)
	if (matchArray==null) {
		alert("Email address seems incorrect (check @ and .'s)")
		return false
	}
	var user=matchArray[1]
	var domain=matchArray[2]

	if (user.match(userPat)==null) {
    		alert("Email address doesn't seem to be valid.")
    		return false
	}

	var IPArray=domain.match(ipDomainPat)
	if (IPArray!=null) {
	  for (var i=1;i<=4;i++) {
	    if (IPArray[i]>255) {
	        alert("Email address has an invalid destination IP.")
		return false
	    }
    	}
   	 return true
	}
	var domainArray=domain.match(domainPat)
	if (domainArray==null) {
		alert("Email address has an invalid domain name")
   		return false
	}

	var atomPat=new RegExp(atom,"g")
	var domArr=domain.match(atomPat)
	var len=domArr.length
	if (domArr[domArr.length-1].length<2 || 
    		domArr[domArr.length-1].length>4) {
  		alert("Email address must end in a three-letter or four-letter domain, or two letter country.")
   		return false
	}
	if (len<2) {
  		 var errStr="Email address doesn't have a hostname."
  		 alert(errStr)
   		return false
		}
	return true;
}

function formCheck(form){
		
	if (form.firstname.value == "") {
		alert("Please enter your first name!")
		return false
	}
	if (form.lastname.value == "") {
        alert("Please enter your last name!")
        return false
    }
    if (form.company.value == "") {
		alert("Please enter a company!")
		return false
	}
	if (form.position.value == "") {
		alert("Please enter your job title!")
		return false
	}
	if (form.address.value == "") {
		alert("Please enter your address!")
		return false
	}
	if (!emailCheck (form.email.value)) {
		return false
	}
	if (form.phone.value == "") {
		alert("Please enter your phone number!")
		return false
	}
	if (form.users.value == "") {
		alert("Please select number of users!")
		return false
	}
    /*if (form.current_project.value == "") {
        alert("Please tell us whether or not you have a current project in place!")
        return false
    }
    if (form.postcode.value == "") {
        alert("Please tell us whether or not you would like to hear from a Message labs specialist!")
        return false
    }*/
    

	return true
}

// The Arrogant Cat form design uses textual submit links instead of buttons, this function replaces the buttons of class 'convert-to-link' with an href
function textualiseSubmitButtons(){
	for(i=0;i<$("input:submit.convert-to-link").length;i++){
		var submitelement = $("input:submit.convert-to-link")[i];
		var id = submitelement.id;
		submitelement.id = "hidden_submit_"+i;
		submitelement.style.display = "none";
		//create new link
		var submitLink = document.createElement("a");
		submitLink.setAttribute("href", "javascript:document.getElementById('"+submitelement.id+"').click();");
		submitLink.setAttribute("id", id);		    					
		submitLink.innerHTML = submitelement.value;
		
		$(submitelement).after(submitLink);
	}
}
$(document).ready(function(){
		textualiseSubmitButtons();
	}
);
// binding for the registration page unsubscribe warning.
$("document").ready(
	function(){
		$("#UnsubscribeAll").bind("click",
			function(){
				if(this.checked == true){
					$("#unsubscribewarning").show(200);
				}else{
					$("#unsubscribewarning").hide(200);			
				}
			}
		);
	}
);