/*To reference any frame, iframe, form, input, image or anchor (but not link) by its name, or
positioned element by its id in the current document - it can optionally scan through any frameset
structure to find it (searching in frames that have not loaded will cause an error):
theObject = MWJ_findObj( nameOrIdOfObject[, optional referenceToFrameToStartSearchingIn] );*/
function MWJ_findObj( oName, oFrame, oDoc ) {
        if( !oDoc ) { if( oFrame ) { oDoc = oFrame.document; } else { oDoc = window.document; } }
        if( oDoc[oName] ) { return oDoc[oName]; } if( oDoc.all && oDoc.all[oName] ) { return oDoc.all[oName]; }
        if( oDoc.getElementById && oDoc.getElementById(oName) ) { return oDoc.getElementById(oName); }
        for( var x = 0; x < oDoc.forms.length; x++ ) { if( oDoc.forms[x][oName] ) { return oDoc.forms[x][oName]; } }
        for( var x = 0; x < oDoc.anchors.length; x++ ) { if( oDoc.anchors[x].name == oName ) { return oDoc.anchors[x]; } }
        for( var x = 0; document.layers && x < oDoc.layers.length; x++ ) {
                var theOb = MWJ_findObj( oName, null, oDoc.layers[x].document ); if( theOb ) { return theOb; } }
        if( !oFrame && window[oName] ) { return window[oName]; } if( oFrame && oFrame[oName] ) { return oFrame[oName]; }
        for( var x = 0; oFrame && oFrame.frames && x < oFrame.frames.length; x++ ) {
                var theOb = MWJ_findObj( oName, oFrame.frames[x], oFrame.frames[x].document ); if( theOb ) { return theOb; } }
        return null;
}


/*To change the display style of any element, if it is supported:
MWJ_changeDisplay( nameOrIdOfElement, '' or 'block' or 'inline' or 'none'[, optional referenceToFrameToStartSearchingIn] );
Note: IE 4 does not understand 'inline' , so '' should be used. iCab does not understand '', so 'block' should be used.*/
function MWJ_changeDisplay( oName, oDisp, oFrame ) {
        var theDiv = MWJ_findObj( oName, oFrame ); if( !theDiv ) { return; }
        if( theDiv.style ) { theDiv = theDiv.style; } if( typeof( oDisp ) == 'string' ) { oDisp = oDisp.toLowerCase(); }
        theDiv.display = ( oDisp == 'none' ) ? 'none' : ( oDisp == 'block' ) ? 'block' : ( oDisp == 'inline' ) ? 'inline' : '';
}

/*To change the visibility of a positioned element - true for visible, false for hidden:
MWJ_changeVisibility( idOfPositionedElement, true/false[, optional referenceToFrameToStartSearchingIn] );*/
function MWJ_changeVisibility( oName, oVis, oFrame ) {
	var theDiv = MWJ_findObj( oName, oFrame ); if( !theDiv ) { return; }
	if( theDiv.style ) { theDiv.style.visibility = oVis ? 'visible' : 'hidden'; } else { theDiv.visibility = oVis ? 'show' : 'hide'; }
}


function getElementsByClass(searchClass,node,tag) {
        
		var classElements = new Array();
        if ( node == null )
                node = document;
        if ( tag == null )
                tag = '*';
        var els = node.getElementsByTagName(tag);
        var elsLen = els.length;
        var pattern = new RegExp("(^|\\\\s)"+searchClass+"(\\\\s|$)");
        for (i = 0, j = 0; i < elsLen; i++) {
                if ( pattern.test(els[i].className) ) {
                        classElements[j] = els[i];
                        j++;
                }
        }
        return classElements;
}

function getModifiedByClass(searchClass,node,tag) {
        
		var classElements = new Array();
        if ( node == null )
                node = document;
        if ( tag == null )
                tag = '*';
        var els = node.getElementsByTagName(tag);
        var elsLen = els.length;
        var pattern = new RegExp(searchClass);
        for (i = 0, j = 0; i < elsLen; i++) {
                if ( pattern.test(els[i].className) ) {
                        classElements[j] = els[i];
                        j++;
                }
        }
        return classElements;
}





function textswap(divID_as_a_string, txt) {
	var myReference = getRefToDiv(divID_as_a_string);
	if( !myReference ) { window.alert('Nothing works in this browser'); return; }
	if( myReference.innerHTML ) { myReference.innerHTML = (txt); } else {
		if( myReference.document && myReference.document != window.document ) {
			myReference.document.open();
			myReference.document.write(txt);
			myReference.document.close();
		} else {
			window.alert('Your browser does not allow the contents to be re-written.\nI have not implemented an iframe here.\nSee my generic re-writable elements example for how this should be done.'); return; }
    }
}

function getRefToDiv(divID,oDoc) {
	if( document.getElementById ) { return document.getElementById(divID); }
	if( document.all ) { return document.all[divID]; }
	if( !oDoc ) { oDoc = document; }
	if( document.layers ) {
		if( oDoc.layers[divID] ) {
			return oDoc.layers[divID];
		} else {
			for( var x = 0, y; !y && x < oDoc.layers.length; x++ ) {
				y = getRefToDiv(divID,oDoc.layers[x].document);
			}
			return y;
		}
	}
	return false;
}

function divwrite (divID_as_a_string, string_to_write) {
	var myReference = getRefToDiv(divID_as_a_string);
	if( !myReference ) { window.alert('Nothing works in this browser'); return; }
	if( myReference.innerHTML ) { myReference.innerHTML = (string_to_write); } else {
		if( myReference.document && myReference.document != window.document ) {
			myReference.document.open();
			myReference.document.write(string_to_write);
			myReference.document.close();
		} else {
			window.alert('Your browser does not allow page contents to be re-written.\nSorry about that :('); return; }
    }
}

 function disableEnterKey(e)
 {
      var key;      
      if(window.event)
           key = window.event.keyCode; //IE
      else
           key = e.which; //firefox      

      return (key != 13);
 }




/*

function textsize(a) {
	// called from extrasmenu
//alert(a);
document.body.style.fontSize=a;
document.body.style.lineHeight='140%';// seems to need resetting to this each time
//window.location.reload(true);
document.cookie="ebico_textsize="+a;
}


//Get cookie routine by Shelley Powers 
 function get_cookie(Name) {
 var search = Name + "="
 var returnvalue = "";
 if (document.cookie.length > 0) {
 offset = document.cookie.indexOf(search)
 // if cookie exists
 if (offset != -1) { 
 offset += search.length
 // set index of beginning of value
 end = document.cookie.indexOf(";", offset);
 // set index of end of cookie value
 if (end == -1) end = document.cookie.length;
 returnvalue=unescape(document.cookie.substring(offset, end))
 }
 }
 return returnvalue;
 }

*/


function generate_address( part1, part2 ) {
var atsign = "&#64;";
var addr = part1 + atsign + part2;
document.write( "<" + "a" + " " + "href=" + "mail" + "to:" + addr + ">" +addr +"<\/a>");
}



// from md_style.js


var prefsLoaded = false;
var defaultFontSize = 76;
var currentFontSize = defaultFontSize;

function revertStyles(){

	currentFontSize = defaultFontSize;
	changeFontSize(0);

}

function toggleColors(){
	if(currentStyle == "White"){
		setColor("Black");
	}else{
		setColor("White");
	}
}

function changeFontSize(sizeDifference){
	currentFontSize = parseInt(currentFontSize) + parseInt(sizeDifference * 5);

	if(currentFontSize > 100){
		currentFontSize = 100;
	}else if(currentFontSize < 60){
		currentFontSize = 60;
	}

	setFontSize(currentFontSize);
};

function setFontSize(fontSize){
	var stObj = (document.getElementById) ? document.getElementById('content_area') : document.all('content_area');
	document.body.style.fontSize = fontSize + '%';
	
	//alert (document.body.style.fontSize);
};


function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
};

function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
};

window.onload = setUserOptions;

function setUserOptions(){
	if(!prefsLoaded){

		cookie = readCookie("fontSize");
		currentFontSize = cookie ? cookie : defaultFontSize;
		setFontSize(currentFontSize);
		
		prefsLoaded = true;
	}

}

window.onunload = saveSettings;

function saveSettings()
{
  createCookie("fontSize", currentFontSize, 365);
}



function change_vehicle(theform) {
var	vehicle=theform.popvehicletype.value; // what they chose
//alert(theform[vehicle].value);
if (theform.popvehicletype.selectedIndex>0 && theform.popvehicletype.selectedIndex<10){ // NB was 11 until van (petrol) removed
theform.fuelconamount.value=theform[vehicle].value;
theform.popfuelconunits.selectedIndex=1; // mpg
}

if (theform.popvehicletype.selectedIndex==10){  // NB was 11 until van (petrol) removed
theform.fuelconamount.value='';
theform.popfuelconunits.selectedIndex=0; // --
}
}