function blink_text(id, k1, t1, k2, t2){
  if (document.getElementById){
    document.getElementById(id).style.color = k1;
	setTimeout('blink_text("' +  id + '","' + k2 + '",' + t2 + ',"' + k1 + '",' + t1 + ')', t1);
  }else if (document.all){
    document.all[id].style.color = k1;
	setTimeout('blink_text("' +  id + '","' + k2 + '",' + t2 + ',"' + k1 + '",' + t1 + ')', t1);
  }
}
function move_up(elem) {
    document.getElementById(elem).scrollTop = 0;
  }
function disable_key(keycode){
	event = event || window.event; //IE suckes
	if(keycode=='enter'){
		if ( event.keyCode == 13) {
			return false;
		}else{
			alert(event.keyCode);
		}
	}else{
		
		alert (keycode);	
	}
}
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 var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}
function limit_for_field(limit, field, span_field){
	if (document.getElementById(field).value.length > limit){
		document.getElementById(field).value = document.getElementById(field).value.substring(0, limit);
	}
	
	if(span_field.length > 0){
		txt = "";
		value = document.getElementById(field).value.length;
		chars_left = limit - value;
		//alert(chars_left);
		txt = "" + chars_left + " chars left";
		document.getElementById(span_field).innerHTML = txt;
	}
	return true;
}
function center_window(window_width, window_height) {
	window.resizeTo(window_width + 10,window_height + 27, 'detal');
	var wwww = screen.width/2 - window_width/2;
	var hhhh = screen.height/2 - window_height/2;
	window.moveTo(wwww,hhhh);
}function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}


function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}
function migajacy_text(id, k1, t1, k2, t2){
  if (document.getElementById){
    document.getElementById(id).style.color = k1;
	setTimeout('migajacy_text("' +  id + '","' + k2 + '",' + t2 + ',"' + k1 + '",' + t1 + ')', t1);
  }else if (document.all){
    document.all[id].style.color = k1;
	setTimeout('migajacy_text("' +  id + '","' + k2 + '",' + t2 + ',"' + k1 + '",' + t1 + ')', t1);
  }
}
function check_email(email_pole, alowed, allow_empty) {
	if ((document.getElementById(email_pole).value.length>=0)&&(document.getElementById(email_pole).value!=alowed)){
		Wzor = /^[0-9a-zA-Z.-_\-]+\@[0-9a-zA-Z.-_\-]+\.[0-9a-zA-Z.]{2,4}$/;
	   	if (Wzor.test(document.getElementById(email_pole).value) == false){
			if((allow_empty == '1')&&(document.getElementById(email_pole).value.length==0))
			{
				//alert("mozna puste i jest pusty");
				return true; 
			}
			else
			{
				//alert("Niepoprawna forma adresu e-mail!");
				return false;
			}
	    }
		//alert("Pasuje do wzoru!");
   		return true; 
    }
	//alert("dluzsze od zera i nie wolno pustych!");
  	return true;
}
function check_email_value(email_value, alowed, allow_empty) {
	if ((email_value.length>=0)&&(email_value!=alowed)){
		Wzor = /^[0-9a-zA-Z.-_\-]+\@[0-9a-zA-Z.-_\-]+\.[0-9a-zA-Z.]{2,4}$/;
	   	if (Wzor.test(email_value) == false){
			if((allow_empty == '1')&&(email_value.length==0))
			{
				//alert("mozna puste i jest pusty");
				return true; 
			}
			else
			{
				//alert("Niepoprawna forma adresu e-mail!");
				return false;
			}
	    }
		//alert("Pasuje do wzoru!");
   		return true; 
    }
	//alert("dluzsze od zera i nie wolno pustych!");
  	return true;
}
function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function ustaw(ktory){
	document.getElementById('diva'+ktory+'').style.backgroundColor=document.getElementById(''+ktory+'').value;
}
function restore(ktory){
	document.getElementById('diva'+ktory+'').style.backgroundColor=document.getElementById('stary'+ktory+'').value;
	document.getElementById(''+ktory+'').value=document.getElementById('stary'+ktory+'').value;
}
function popraw_okno(window_width, window_height) {
	window.resizeTo(window_width + 10,window_height + 60, 'big_foto');
	var szerokosc = screen.width/2 - window_width/2;
	var wysokosc = screen.height/2 - window_height/2;
	window.moveTo(szerokosc,wysokosc);
}
function check_uploaded_cv(){
	var str = document.getElementById('file_cv').value;
	if((str.substr(str.lastIndexOf('.'),4)=='.doc')||(str.substr(str.lastIndexOf('.'),4)=='.pdf')){
		//alert(document.getElementById('name').value);
		if((document.getElementById('cv_name').value==' Describe your CV')||(document.getElementById('cv_name').value=='')){
			alert("Please insert name for your CV.");
			document.getElementById('cv_name').focus();	
			document.getElementById('cv_name').value='';
			return false;
		}else{
			return true;
		}
	}else{
		alert("Unexpected file format "+str.substr(str.lastIndexOf('.'),4)+".\n DOC or PDF expected.");
		document.getElementById('file_cv').focus();
		return false;
	}
}
function check_uploaded_photo(){
	var str = document.getElementById('file_photo').value;
	if((str.substr(str.lastIndexOf('.'),4)=='.gif')||(str.substr(str.lastIndexOf('.'),4)=='.jpg')||(str.substr(str.lastIndexOf('.'),4)=='.png')||(str.substr(str.lastIndexOf('.'),5)=='.jpeg')){
		//alert(document.getElementById('file_photo').value);
		return true;
	}else{
		alert("Unexpected file format "+str.substr(str.lastIndexOf('.'),4)+".\n JPG, GIF or PNG expected.");
		document.getElementById('file_photo').focus();
		return false;
	}
}
if (navigator.platform == "Win32" && navigator.appName == "Microsoft Internet Explorer" && window.attachEvent)
{
	//document.writeln('<style type="text/css">img { visibility:hidden; } </style>');
	window.attachEvent("onload", fnLoadPngs);
}

function fnLoadPngs()
{
	var rslt = navigator.appVersion.match(/MSIE (\d+\.\d+)/, '');
	var itsAllGood = (rslt != null && Number(rslt[1]) >= 5.5);

	for (var i = document.images.length - 1, img = null; (img = document.images[i]); i--)
	{
		if (itsAllGood && img.src.match(/\.png$/i) != null && img.src != "0.png" && img.src != "1.png" && img.src != "2.png" && img.src != "3.png" && img.src != "4.png" && img.src != "5.png")
		{
			var src = img.src;
			var div = document.createElement("DIV");
			div.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + src + "', sizing='scale')"
			div.style.width = img.width + "px";
			div.style.height = img.height + "px";
			img.replaceNode(div);
		}
		img.style.visibility = "visible";
	}
}