/*
	javascript development
	============================
	website 	: 	www.capesounio.com/
	date 		: 	14/11-2008		
	author 		: 	mayra metaxa / developer
	company		: 	mozaik creative business solutions
	url			:	http://www.mozaik.com

*/

function openclose_block(id, prosimo, numofblocks)
{	
	
	if (document.getElementById(id).style.display == "none")
	{
		document.getElementById(id).style.display = "block";
		document.getElementById(prosimo).innerHTML = "-";
	}
	else
	{
		document.getElementById(id).style.display = "none";
		document.getElementById(prosimo).innerHTML = "+";
	}
	
	//close all other blocks
	if (numofblocks>1)
	{
		for (i=1;i<=numofblocks;i++)
		{
			if ('block'+i != id)
			{
				document.getElementById('block'+i).style.display = "none";
				document.getElementById('prosimo'+i).innerHTML = "+";
			}
		}
	}
}


/**/

function change_main_img()
{
	//document.getElementById('preview_image').src =  'images/floorplans/'+img;	
	
	document.getElementById('main_img_flash_block').style.display = "none";
	document.getElementById('main_img_block').style.display = "block";
	
	//--
	var speed = Math.round(800 / 100);
	var timer = 0;
	//fade out
	changeOpac(0, 'preview_image');
	//fade in image
	for(i = 0; i <= 100; i++) {
		setTimeout("changeOpac(" + i + ",'preview_image')",(timer * speed));
		timer++;
	}
}

function close_main_img()
{
	document.getElementById('main_img_block').style.display = "none";
	document.getElementById('main_img_flash_block').style.display = "block";	
}


/* ========================= fade in/ out gallery ========================= */

/*function opacity(id, opacStart, opacEnd, millisec) {
	//speed for each frame
	var speed = Math.round(millisec / 100);
	var timer = 0;

	//determine the direction for the blending, if start and end are the same nothing happens
	if(opacStart > opacEnd) {
		for(i = opacStart; i >= opacEnd; i--) {
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	} else if(opacStart < opacEnd) {
		for(i = opacStart; i <= opacEnd; i++)
			{
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	}
}

function shiftOpacity(id, millisec) {
	//if an element is invisible, make it visible, else make it ivisible
	if(document.getElementById(id).style.opacity == 0) {
		opacity(id, 0, 100, millisec);
	} else {
		opacity(id, 100, 0, millisec);
	}
}


function currentOpac(id, opacEnd, millisec) {
	//standard opacity is 100
	var currentOpac = 100;
	
	//if the element has an opacity set, get it
	if(document.getElementById(id).style.opacity < 100) {
		currentOpac = document.getElementById(id).style.opacity * 100;
	}

	//call for the function that changes the opacity
	opacity(id, currentOpac, opacEnd, millisec)
}*/


//change the opacity for different browsers
function changeOpac(opacity, id) {
	var object = document.getElementById(id).style; 
	object.opacity = (opacity / 100);
	object.MozOpacity = (opacity / 100);
	object.KhtmlOpacity = (opacity / 100);
	object.filter = "alpha(opacity=" + opacity + ")";
}
/*
/* ==== *

function myblend(imageholderid, nextimageid, millisec) {
	var speed = Math.round(millisec / 100);
	var timer = 0;
	
	document.getElementById(imageholderid).src = document.getElementById(nextimageid).src;
	
	//fade out
	changeOpac(0, imageholderid);

	//fade in image
	for(i = 0; i <= 100; i++) {
		setTimeout("changeOpac(" + i + ",'" + imageholderid + "')",(timer * speed));
		timer++;
	}
}

function bring_next()
{
	activeimage = activeimage + 1;
	
	if (activeimage>total_images)
		activeimage = 1;
		
	myblend('galleryImage', 'image'+activeimage, 1200);
}

function bring_prev()
{
	activeimage = activeimage - 1;
	
	if (activeimage<=0)
		activeimage = total_images;
		
	myblend('galleryImage', 'image'+activeimage, 1200);
}*/