function portfolioCategory (obj)
{
	if (obj.options[obj.selectedIndex].value != 0 ) 
	{ 
		window.location='/portfolio/'+ obj.options[obj.selectedIndex].value+'/';
	}
	
}

function GetXmlHttpObject(handler)
{ 
	var objXMLHttp=null
	if (window.XMLHttpRequest)
	{
		objXMLHttp=new XMLHttpRequest()
	}
	else if (window.ActiveXObject)
		 {
			objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
		}
	return objXMLHttp
}



/*gallery*/
var selectedImage =0;
var pageNumber=0;
function changeImage(imageId , collectionId)
{
	if (imageId == 0)
	{
		return 
	}
	
	var pic = getElementsByClass('selPicture',document.getElementById('photos'),'img')
	
	for (picSel in pic)
	{
			pic[picSel].className ='normalPicture';
	}
	
	document.getElementById('picture'+ imageId).className='selPicture';
	document.getElementById("galleryImageCaption").innerHTML= document.getElementById('picture'+ imageId).alt;
	window.selectedImage = imageId;
	
	xmlHttp=GetXmlHttpObject()
	if (xmlHttp==null)
	{
		alert ("Browser does not support HTTP Request")
		return
	} 
		var url= "/changeimage.html"
		url=url+"?imageid="+imageId + "&collectionid="+collectionId
		url=url+"&sid="+Math.random()
		xmlHttp.onreadystatechange=stateChangedForChangeImage 
		xmlHttp.open("GET",url,true)
		xmlHttp.send(null)
	
}
function stateChangedForChangeImage() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	{ 
		var obj = new Object();
		eval(xmlHttp.responseText );
		
		if (obj.video == 0)
		{
			document.getElementById("photo").style.display = '';
			document.getElementById("prjvideo").style.display = 'none';
			document.getElementById("galleryBigImage").src=obj.src;
			document.getElementById("galleryBigImage").alt=obj.alt;
			document.getElementById('picture'+ obj.id).className='selPicture';
			document.getElementById("galleryImageCaption").innerHTML=obj.alt;
		}
		else
		{
			document.getElementById("prjvideo").style.display = '';
			document.getElementById("photo").style.display = 'none';
			var s = new SWFObject("/video/player.swf","ply","336","337","9","#FFFFFF");
							s.addParam("allowfullscreen","true");
							s.addParam("allowscriptaccess","always");
							s.addParam("wmode","opaque");
							s.addParam("flashvars","height=336&width=302&file="+obj.videosrc+"&image="+obj.videoscreenshot+"");
							s.write("prjvideo");

		}
		
		window.selectedImage= obj.id;
	} 
	else
	{
		//document.getElementById("photo").innerHTML="<div>aa</div>"
	}
} 


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 previousImage(collectionId, cat)
{
	imageId = window.selectedImage;
	document.getElementById('picture'+ imageId).className='normalPicture';
	xmlHttp=GetXmlHttpObject()
	if (xmlHttp==null)
	{
		alert ("Browser does not support HTTP Request")
		return
	} 
		var url= "/changepreviousimage.html"
		url=url+"?imageid="+imageId + "&collectionid="+collectionId + "&cat=" + cat + "&page=" + window.pageNumber

		url=url+"&sid="+Math.random()
		xmlHttp.onreadystatechange=stateChangedForPreviousImage
		xmlHttp.open("GET",url,true)
		xmlHttp.send(null)
}

function stateChangedForPreviousImage() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	{ 
		var obj = new Object();
		
		eval(xmlHttp.responseText );
		
		document.getElementById("galleryBigImage").src=obj.src;
		document.getElementById("galleryBigImage").alt=obj.alt;
		document.getElementById('picture'+ obj.id).className='selPicture';
		document.getElementById("galleryImageCaption").innerHTML=obj.alt;
		window.selectedImage= obj.id;
		
	} 
	else
	{
		//document.getElementById("photo").innerHTML="<div>aa</div>"
	}
	
} 

function nextImage(collectionId, cat)
{
	imageId = window.selectedImage;
	document.getElementById('picture'+ imageId).className='normalPicture';
		
	xmlHttp=GetXmlHttpObject()
	if (xmlHttp==null)
	{
		alert ("Browser does not support HTTP Request")
		return
	} 
		var url= "/changenextimage.html"
		url=url+"?imageid="+imageId + "&collectionid="+collectionId + "&cat=" + cat + "&page=" + window.pageNumber
		url=url+"&sid="+Math.random()
		xmlHttp.onreadystatechange=stateChangedForPreviousImage
		xmlHttp.open("GET",url,true)
		xmlHttp.send(null)
}