function addLoadEvent(func) {
	var oldonload = window.onload;
	if (typeof window.onload != 'function') {
		window.onload = func;
	} else {
		window.onload = function() {
			if (oldonload) {
				oldonload();
			}
			func();
		}
	}
}

$(document).ready(function(){
$(document).pngFix();
});

var PreSimpleSwapOnload =(window.onload)? window.onload : function(){};
window.onload = function(){PreSimpleSwapOnload(); SimpleSwapSetup();}

function SimpleSwap(el, which) {
    el.src = el.getAttribute(which || "origsrc");
}

function SimpleSwapSetup() {
    var x = document.getElementsByTagName("img");
    for (var i = 0; i < x.length; i++) {
        var oversrc = x[i].getAttribute("oversrc");
        if (!oversrc) {
            continue;
        }
        x[i].oversrc_img = new Image;
        x[i].oversrc_img.src = oversrc;
        x[i].onmouseover = new Function("SimpleSwap(this,'oversrc');");
        x[i].onmouseout = new Function("SimpleSwap(this);");
        x[i].setAttribute("origsrc", x[i].src);
    }
}


function Inicialitza() {

	ff=window.document.apuntat;

	if (ff.Observacions.value=='Opcional') { 
		ff.Observacions.value='';
	}

}

function Valida_Formulari() {
	ok=0;
	error='';
	ff=window.document.apuntat;

	if (ff.Nom.value.length < 1) {error += '\n· Nom'; ok=1; }
	if (ff.Cognoms.value.length < 1) {error += '\n· Cognoms'; ok=1; }
	if (ff.Naixement.value.length < 1) {error += '\n· Data Naixement'; ok=1; }
	if (ff.Poblacio.value.length < 1) {error += '\n· Població'; ok=1; }
	if (ff.Sexe.options[ff.Sexe.selectedIndex].text == '') {error += '\n· Sexe'; ok=1; }
	if (ff.CodiPostal.value.length < 1) {error += '\n· CodiPostal'; ok=1; }
	if (ff.Provincia.value.length < 1) {error += '\n· Provincia'; ok=1; }
	if (ff.Telefon.value.length < 1) {error += '\n· Telèfon'; ok=1; }
	if (ff.Email.value.length < 1) {error += '\n· Email'; ok=1; }
	if (ff.Altura.options[ff.Altura.selectedIndex].text == '') {error += '\n· Alçada'; ok=1; }
	if (ff.file_dni.value == '') {error += '\n· Fotocòpia DNI'; ok=1; }
	if (ff.file_primer_pla.value == '') {error += '\n· Foto Primer Plà'; ok=1; }
	if (ff.file_cos_sencer.value == '') {error += '\n· Foto Cos Sencer'; ok=1; }
	if ((ff.Observacions.value.length < 1) && (ff.Observacions.value!='Opcional')) { error += '\n· Observacions'; ok=1; }
	if (ok==1) {
		alert('S\'ha detectat un error en la inserció de dades del formulari. \nRevisi atentament el(s) camp(s):\n\n'+error+ '\n\n');
		return false;
	}

	ok=0;
	if (!(strstr(ff.file_dni.value.toLowerCase(),".jpg"))) {error += '\n· Fotocòpia DNI'; ok=1; }
	if (!(strstr(ff.file_primer_pla.value.toLowerCase(),".jpg"))) {error += '\n· Foto Primer Plà'; ok=1; }
	if (!(strstr(ff.file_cos_sencer.value.toLowerCase(),".jpg"))) {error += '\n· Foto Cos Sencer'; ok=1; }
	if (ok==1) {
		alert('El format vàlid per els arxius adjunts es el JPG. \nRevisi atentament el(s) fitxer(s):\n\n'+error+ '\n\n');
		return false;
	}

	document.getElementById('ani_bt').innerHTML = document.getElementById('preload').innerHTML;
	ff.submit();
}


function strstr( haystack, needle, bool ) {
 
    var pos = 0;
 
    pos = haystack.indexOf( needle );
    if( pos == -1 ){
        return false;
    } else{
        if( bool ){
            return haystack.substr( 0, pos );
        } else{
            return haystack.slice( pos );
        }
    }
}


/*
Simple Image Trail script- By JavaScriptKit.com
Visit http://www.javascriptkit.com for this script and more
This notice must stay intact
*/

var offsetfrommouse=[15,15]; //image x,y offsets from cursor position in pixels. Enter 0,0 for no offset
var displayduration=0; //duration in seconds image should remain visible. 0 for always.

var defaultimageheight = 40;	// maximum image size.
var defaultimagewidth = 40;	// maximum image size.

var timer;

function gettrailobj(){
if (document.getElementById)
return document.getElementById("preview_div").style
}

function gettrailobjnostyle(){
if (document.getElementById)
return document.getElementById("preview_div")
}


function truebody(){
return (!window.opera && document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}


function hidetrail(){	
	gettrailobj().display= "none";
	document.onmousemove=""
	gettrailobj().left="-3500px"
	clearTimeout(timer);
}

function showtrail(imagename,title,width,height){
	i = imagename
	t = title
	w = width
	h = height
	timer = setTimeout("show('"+i+"',t,w,h);",200);
	followmouse;
}
function show(imagename,title,width,height){
 
    	var oWidth = width;
    	var oHeight = height;
    	var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth - offsetfrommouse[0]
	var docheight=document.all? Math.min(truebody().scrollHeight, truebody().clientHeight) : Math.min(window.innerHeight)

	if( (navigator.userAgent.indexOf("Konqueror")==-1  || navigator.userAgent.indexOf("Firefox")!=-1 || (navigator.userAgent.indexOf("Opera")==-1 && navigator.appVersion.indexOf("MSIE")!=-1)) && (docwidth>650 && docheight>500)) {
		( width == 0 ) ? width = defaultimagewidth: '';
		( height == 0 ) ? height = defaultimageheight: '';
			
		width+=30
		height+=55
		defaultimageheight = height
		defaultimagewidth = width
	
		document.onmousemove=followmouse_2; 

		
		newHTML = '<div class="border_preview" style="width:'+  width +'px;height:'+ height +'px"><div id="loader_container"><div id="loader"><div align="center">Cargando imagen '+title+' ...</div><div id="loader_bg"><div id="progress"> </div></div></div></div>';
		newHTML = newHTML + '<h2 class="title_h2">' + ' '+title + '</h2>'
		
    	newHTML = newHTML + '<div class="preview_temp_load"><img onload="javascript:remove_loading();" src="' + imagename + '" border="0" width="'+oWidth+'" height="'+oHeight+'"></div>';
		newHTML = newHTML + '</div>'; 
		
		if(navigator.userAgent.indexOf("MSIE")!=-1 && navigator.userAgent.indexOf("Opera")==-1 ){
			newHTML = newHTML+'<iframe src="about:blank" scrolling="no" frameborder="0" width="'+width+'" height="'+height+'"></iframe>';
		}		

		gettrailobjnostyle().innerHTML = newHTML;
		gettrailobj().display="block";
	}
}


function followmouse_2(e){

	var xcoord=offsetfrommouse[0]
	var ycoord=offsetfrommouse[1]

	var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth-15
	var docheight=document.all? Math.min(truebody().scrollHeight, truebody().clientHeight) : Math.min(window.innerHeight)

	if (typeof e != "undefined"){
		if (docwidth - e.pageX < defaultimagewidth + 2*offsetfrommouse[0]){
			xcoord = e.pageX - xcoord - defaultimagewidth; // Move to the left side of the cursor
		} else {
			xcoord += e.pageX;
		}
		if (docheight - e.pageY < defaultimageheight + 2*offsetfrommouse[1]){
			ycoord += e.pageY - Math.max(0,(2*offsetfrommouse[1] + defaultimageheight + e.pageY - docheight - truebody().scrollTop));
		} else {
			ycoord += e.pageY;
		}

	} else if (typeof window.event != "undefined"){
		if (docwidth - event.clientX < defaultimagewidth + 2*offsetfrommouse[0]){
			xcoord = event.clientX + truebody().scrollLeft - xcoord - defaultimagewidth; // Move to the left side of the cursor
		} else {
			xcoord += truebody().scrollLeft+event.clientX
		}
		if (docheight - event.clientY < (defaultimageheight + 2*offsetfrommouse[1])){
			ycoord += event.clientY + truebody().scrollTop - Math.max(0,(2*offsetfrommouse[1] + defaultimageheight + event.clientY - docheight));
		} else {
			ycoord += truebody().scrollTop + event.clientY;
		}
	}
	
	//xcoord = docwidth/2; 
	gettrailobj().left=xcoord+"px"
	gettrailobj().top=ycoord+"px"

}

function followmouse(e){

	var xcoord=offsetfrommouse[0]
	var ycoord=offsetfrommouse[1]

	var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth-15
	var docheight=document.all? Math.min(truebody().scrollHeight, truebody().clientHeight) : Math.min(window.innerHeight)

	if (typeof e != "undefined"){
		if (docwidth - e.pageX < defaultimagewidth + 2*offsetfrommouse[0]){
			xcoord = e.pageX - xcoord - defaultimagewidth; // Move to the left side of the cursor
		} else {
			xcoord += e.pageX;
		}
		if (docheight - e.pageY < defaultimageheight + 2*offsetfrommouse[1]){
			ycoord += e.pageY - Math.max(0,(2*offsetfrommouse[1] + defaultimageheight + e.pageY - docheight - truebody().scrollTop));
		} else {
			ycoord += e.pageY;
		}

	} else if (typeof window.event != "undefined"){
		if (docwidth - event.clientX < defaultimagewidth + 2*offsetfrommouse[0]){
			xcoord = event.clientX + truebody().scrollLeft - xcoord - defaultimagewidth; // Move to the left side of the cursor
		} else {
			xcoord += truebody().scrollLeft+event.clientX
		}
		if (docheight - event.clientY < (defaultimageheight + 2*offsetfrommouse[1])){
			ycoord += event.clientY + truebody().scrollTop - Math.max(0,(2*offsetfrommouse[1] + defaultimageheight + event.clientY - docheight));
		} else {
			ycoord += truebody().scrollTop + event.clientY;
		}
	}
	gettrailobj().left=xcoord+"px"
	gettrailobj().top=ycoord+"px"

}


var t_id = setInterval(animate,20);
var pos=0;
var dir=2;
var len=0;

function animate()
{
var elem = document.getElementById('progress');
if(elem != null) {
if (pos==0) len += dir;
if (len>32 || pos>79) pos += dir;
if (pos>79) len -= dir;
if (pos>79 && len==0) pos=0;
elem.style.left = pos;
elem.style.width = len;
}
}

function remove_loading() {
this.clearInterval(t_id);
var targelem = document.getElementById('loader_container');
targelem.style.display='none';
targelem.style.visibility='hidden';
var t_id = setInterval(animate,60);
}