// JavaScript Document From Header

var x = eval((screen.width-550)/2);
var y = eval((screen.height-300)/2);

function open_pop_up(strUrl){
	var mypopupwindow;
	mypopupwindow = window.open(strUrl,'Information','resizeable=yes, scrollbars=yes,width=600,height=300, left='+x+', top='+y);
	return false;	
}
function check(){
	complete = true;
	if (document.forms[0].elements[9].value == ""){
		complete = null;
		msg = "Please provide a postcode";
	}
	if (document.forms[0].elements[8].value == ""){
		complete = null;
		msg = "Please provide a Town or City";
	}
	if (document.forms[0].elements[6].value == "" && document.forms[0].elements[7].value == ""){
		complete = null;
		msg = "Please provide your postal address";
	}
	if (document.forms[0].elements[5].value == ""){
		complete = null;
		msg = "Please provide an email address";
	}
	if (document.forms[0].elements[3].value == "" &&  document.forms[0].elements[4].value == ""){
		complete = null;
		msg = "Please provide a contact telephone number";
	}
	if (document.forms[0].elements[2].value == ""){
		complete = null;
		msg = "Please provide a company name";
	}
	if (document.forms[0].elements[1].value == ""){
		complete = null;
		msg = "Please provide your surname";
	}
	if (document.forms[0].elements[0].value == ""){
		complete = null;
		msg = "Please provide your first name";
	}
	if (complete){
		return true;
	} else {
		alert(msg);
		return false;
	}
}
	
function show_hide(id){
	if(document.getElementById(id)){
		if (document.getElementById(id).style.display == "none"){
			 document.getElementById(id).style.display = "block";
		 } else {
			 document.getElementById(id).style.display = "none";
		 }
	 }
 }
 
 function checkContactValid() {


     var itemsMissing;
     itemsMissing = "";
     if( form.name.value == "" ) {
         itemsMissing += "Name\n";
     }
     if( form.email.value == "" ) {
         itemsMissing += "Email Address\n";
     }
     if( form.telephone.value == "" ) {
         itemsMissing += "Telephone Number\n";
     }
     if( form.message.value == "" ) {
         itemsMissing += "Message\n";
     }
   
	 if( itemsMissing != "" ) {
          alert("The following information is required:\n\n" + itemsMissing);
      return false;
     }
     return true;
	
}

function checkLength(inputname) 
{ 
        if (inputname.maxLength == inputname.value.length) 
                alert("Too many characters have been typed. This field accepts up to " + inputname.maxLength + " characters.") ; 
        return true ; 


}