var preloadFlag = false;
var preloadStack = new Array("preloadImages();","textOnly(false);");
var pgPreloadImage = new Array();

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document.getElementById(changeImages.arguments[i]).src = changeImages.arguments[i+1];
		}
	}
}

function preloader()
{
	for(j=0; j < preloadStack.length; j++)
	{
		eval(preloadStack[j]);
	}
}

function preloadImages() {
	if (document.images) {
		for(x=0;x<pgPreloadImage.length;x++){
			eval("pgPreloadImage"+x+"=newImage('"+pgPreloadImage[x]+"');");
		}
		preloadFlag = true;
	}
}

function preloadImage(imageUrl)
{
	pgPreloadImage[pgPreloadImage.length] = imageUrl;
}

function addToOnload(js)
{
	preloadStack[preloadStack.length] = js;
}


//
// Text only mode
//
function textOnly(flip)
{

	if (flip)
		textOnlyState = (getCookie("textOnly") == 1) ? false : true;
	else
		textOnlyState = (getCookie("textOnly") == 1) ? true : false;

	try
	{
		stylesheets=this.document.styleSheets;
		for( i=0; i < stylesheets.length; i++)
		{
			stylesheets[i].disabled = textOnlyState;
		}
		setCookie('textOnly',(textOnlyState) ? 1:0,365, '/', '', '');
		document.getElementById('textOnlyLink').innerHTML = (textOnlyState) ? "Full graphics site" : "Text only";
	}
	catch(e){
	}
}



function textboxFocus(obj,defaultVal)
{
	if(obj.value==defaultVal)
	{
		obj.value='';
		obj.style.color='#000';
	}
}

function textboxBlur(obj,defaultVal)
{
	if(obj.value=='')
	{
		obj.value=defaultVal;
		obj.style.color='#999';
	}
}

//
// Cookie Handling functions
//

function setCookie( name, value, expires, path, domain, secure )
{
	// set time, it's in milliseconds
	var today = new Date();
	today.setTime( today.getTime() );

	/*
	if the expires variable is set, make the correct
	expires time, the current script below will set
	it for x number of days, to make it for hours,
	delete * 24, for minutes, delete * 60 * 24
	*/
	if ( expires )
	{
		expires = expires * 1000 * 60 * 60 * 24;
	}
	var expires_date = new Date( today.getTime() + (expires) );

	document.cookie = name + "=" +escape( value ) +
		( ( expires ) ? ";expires=" + expires_date.toGMTString() : "" ) +
		( ( path ) ? ";path=" + path : "" ) +
		( ( domain ) ? ";domain=" + domain : "" ) +
		( ( secure ) ? ";secure" : "" );
}

// this function gets the cookie, if it exists
function getCookie( name ) {
	var start = document.cookie.indexOf( name + "=" );
	var len = start + name.length + 1;
	if ( ( !start ) && ( name != document.cookie.substring( 0, name.length ) ) )
	{
		return null;
	}
	if ( start == -1 ) return null;
	var end = document.cookie.indexOf( ";", len );
	if ( end == -1 ) end = document.cookie.length;
	return unescape( document.cookie.substring( len, end ) );
}

function deleteCookie( name, path, domain ) {
	if ( Get_Cookie( name ) )
		document.cookie = name + "=" + ( ( path ) ? ";path=" + path : "") + ( ( domain ) ? ";domain=" + domain : "" ) + ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
}

  function toggleDiv(divid){
    if(document.getElementById(divid).style.display == 'none'){
      document.getElementById(divid).style.display = 'block';
    }else{
      document.getElementById(divid).style.display = 'none';
    }
  }


function TestForm( stepName )
{

	eval( 'var results = ValidationStep' + stepName + '();' );

	var allValid = true;

    for (var htmlName in results)
	{
		if ( !results[ htmlName ] )
		{
			allValid = false;
		}
	}

	return allValid;
}