var dom = (document.getElementById)? true : false;
var ie = (dom && document.all && !window.opera) ? true : false;
var ie4 = (document.all && !dom)? true : false;
var nn6 = (!ie && dom) ? true : false
var nn4 = (document.layers)? true : false 

function popupWin(name, uri, wdt, hgt) {
	var posCode = ''
	if (nn4 || dom) {
		if ( (screen.height < 481) && (hgt > 400) ) { hgt = 400 }
		posX = Math.round((screen.width - wdt) / 2)
		posY = Math.round((screen.height - hgt) / 2 - 60)
//		posCode = (nn4 || nn6) ? ",screenX="+posX+",screenY="+posY : ",left="+posX+",top="+posY
		posCode = (ie) ? ",left="+posX+",top="+posY : ",screenX="+posX+",screenY="+posY
	}
//	alert(ie + '-' + screen.width + ' ' + screen.height + ' ' + posCode)
	popupedWin = window.open(uri, name, "status=yes,menubar=no,toolbar=no,resizable=yes,scrollbars=yes,location=no,width="+wdt+",height="+hgt+posCode)
	popupedWin.focus()
}

function putStep(stepId) {
	for (var i=1; i<=3; i++) {
		if (dom) document.getElementById('step'+i).style.display = "none";
		else if (ie4) document.all['step'+i].style.display = "none";
	}
	if (ie) {
		if (dom) document.getElementById('step'+stepId).style.display = "block";
		else if (ie4) document.all['step'+stepId].style.display = "block";
	} else {
		if (dom) document.getElementById('step'+stepId).style.display = "table-row";
	}
}

function putElem(elemId) {
	if (dom) document.getElementById(elemId).style.display = "block";
	else if (ie4) document.all[elemId].style.display = "block";
}

function putElemTr(elemId) {
	if (ie) {
		if (dom) document.getElementById(elemId).style.display = "block";
		else if (ie4) document.all[elemId].style.display = "block";
	} else {
		if (dom) document.getElementById(elemId).style.display = "table-row";
	}
}

function putElemIn(elemId) {
	if (dom) document.getElementById(elemId).style.display = "inline";
	else if (ie4) document.all[elemId].style.display = "inline";
}

function removeElem(elemId) {
  if (dom) document.getElementById(elemId).style.display = "none";
  else if (ie4) document.all[elemId].style.display = "none";
}


function changeElem(elemId) {
	
	if (document.getElementById(elemId).style.display == "none") {
		putElem(elemId);
		}
	else	{
		removeElem(elemId);
		}
}

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 sF()
{
	var el = getElementsByClass('btn_submit');
	for (var i=0; i<el.length; i++) {
		el[i].value="Пожалуйста подождите...";
		el[i].className="btn_wait";
		el[i].disabled="true";
	}	
}


function TestRegistrationForm()
{
	var is_disabled = false;
	var fields = getElementsByClass('required');
	var request_confirmation = document.getElementById('request_confirmation');
	var radios = getElementsByClass('required_radio');
	var BtnSubmit = document.getElementById('btn_submit');
	if (!fields || !BtnSubmit) return;
	
	for (var i=0; i<fields.length; i++) {
		if(!fields[i].value){
			is_disabled = true;
		}
	}
	if(request_confirmation && request_confirmation.checked != true){
		is_disabled = true;
	}
	if(radios.length >= 1){
		if(radios[0].checked == false && radios[1].checked == false){
			is_disabled = true;
		}
		if(radios[2].checked == false && radios[3].checked == false){
			is_disabled = true;
		}
	}
	BtnSubmit.disabled = is_disabled;
}


function showImage (imagePath, imageWidth, imageHeight, imageTitle, imageLink) {
	document.getElementById('light').style.display='block'; 
	document.getElementById('fade').style.display='block';
	var container = document.getElementById('light');	
	var iWidth = imageWidth;
	var iHeight = imageHeight;
	if (iWidth == 0) {
		iWidth = 600;
	}
	if (iHeight == 0) {
		iHeight = 400;
	}
	iWidth =  Math.ceil(iWidth) + 40;
	iHeight = Math.ceil(iHeight) + 80;
	container.style.width = iWidth+'px';
	container.style.height = iHeight+'px';
	container.style.marginLeft = Math.ceil(-iWidth/2)+'px';
	container.style.marginTop = Math.ceil(-iHeight/2)+'px';
	document.getElementById('popup_img').style.display = "block";
	document.getElementById('popup_title').innerHTML = imageTitle;
	document.getElementById('popup_img').innerHTML = '<img src="'+imagePath+'" style="width:100%; height:auto" />';
	document.getElementById('popup_img').style.width = Math.ceil(iWidth)-40+'px';
	document.getElementById('popup_img').style.height = Math.ceil(iHeight)-80+'px';
	unFade('0');
}

function unFade (iPercent) {
	if (iPercent <= 50) {
		setOpacity('fade', iPercent);
		var lightPercent = iPercent*2;
		setOpacity('light', lightPercent);
		var nextPercent = iPercent + 5;
		setTimeout("unFade("+nextPercent+")", 1);
	}
}

function fade (iPercent) {
	if (iPercent > 0) {
		setOpacity('fade', iPercent);
		var lightPercent = iPercent*2;
		setOpacity('light', lightPercent);
		var nextPercent = iPercent - 10;
		setTimeout("fade("+nextPercent+")", 1);
	} else {
		document.getElementById('light').style.display='none'; 
		document.getElementById('fade').style.display='none';
		// uppodStopAll('bl_video');
	}
}

function showVideo (filePath, fileWidth, fileHeight, fileTitle) {
	document.getElementById('light').style.display='block'; 
	document.getElementById('fade').style.display='block';
	var container = document.getElementById('light');	
	var iWidth = fileWidth;
	var iHeight = fileHeight;
	if (iWidth == 0) {
		iWidth = 480;
	}
	if (iHeight == 0) {
		iHeight = 320;
	}
	iWidth = Math.ceil(iWidth) +40;
	iHeight = Math.ceil(iHeight) + 80;
	container.style.width = iWidth+'px';
	container.style.height = iHeight+'px';
	container.style.marginLeft = Math.ceil(-iWidth/2)+'px';
	container.style.marginTop = Math.ceil(-iHeight/2)+'px';
	iWidth = Math.ceil(iWidth) - 40;
	iHeight = Math.ceil(iHeight) - 80 - 15;
	document.getElementById('popup_vid').style.display = "block";
	document.getElementById('popup_title').innerHTML = fileTitle;
	document.getElementById('popup_vid').style.width = iWidth+'px';
	document.getElementById('popup_vid').style.height = iHeight+'px';
	unFade('0');
	var flashvars = {uid:"bl_video",m:"video",file:filePath};
	var params = {bgcolor:"#ffffff",  allowFullScreen:"true", allowScriptAccess:"always"}; 
	new swfobject.embedSWF("/js/uppod.swf", "bl_video", iWidth, iHeight, "9.0.0",false,flashvars, params);	
}

function getClientWidth()
{
  return document.compatMode=='CSS1Compat' && !window.opera?document.documentElement.clientWidth:document.body.clientWidth;
}

function setOpacity( elem, level ) {
	
	if ( document.getElementById(elem).filters )
		document.getElementById(elem).style.filter = "progid:DXImageTransform.Microsoft.Alpha(opacity="+level+")";
	else
		document.getElementById(elem).style.opacity = level / 100;
}