var loggedin=0;

function show(id){
	if(document.getElementById){
		document.getElementById(id).style.display="";
	}else if(document.all){
		document.all[id].style.display="";
	}else if(document.layers){
		document.layers[id].display="";
	}
} 
function hide(id){
	if (document.getElementById){
		document.getElementById(id).style.display="none";
	}else if(document.all){
		document.all[id].style.display="none";
	}else if(document.layers){
		document.layers[id].display="none";
	}
} 
function ch(id){
	if(document.getElementById(id).style.display=="none"){
 		show(id);
 	}else{
 		hide(id);
 	}
}
function logIn(){
	var poststr="username="+encodeURI(document.getElementById("username").value)+
				"&password="+encodeURI(document.getElementById("password").value);
	makePOSTRequest('js/php/login.php',poststr,0);
}
function showMainFolders(){
	if(loggedin==1){
		makePOSTRequest('js/php/showMainFolders.php',"do=show&pid=0&level=1",0);
	}else{
		document.getElementById('username').style.background="red";
	}
}
function logOut(){
	hide('logout_fields');
	show('login_fields');
	loggedin=0;
}
function chIn(pid,level){
	block="s_"+pid;
	if(loggedin==1){
		show(block);
		var poststr="do=show&block="+encodeURI(block)+
					"&pid="+encodeURI(pid)+
					"&level="+encodeURI(level);
		makePOSTRequest('js/php/showMainFolders.php',poststr,0);
	}
	var bgNew='link_'+pid;
	document.getElementById(bgNew).style.backgroundImage="url('../images/icons/minus.png')";
	var obj=document.getElementById(bgNew);
	setAttr(obj,"onclick","hideBlock('"+pid+"','"+level+"')",pid,level,hideBlock);
}
function hideBlock(id,level){
	var blocktohide='s_'+id;
	var bgNew='link_'+id;
	document.getElementById(bgNew).style.backgroundImage="url('../images/icons/plus.png')";
	var obj=document.getElementById(bgNew);
	hide(blocktohide);
	setAttr(obj,"onclick","chIn('"+id+"','"+level+"')",id,level,chIn);
}
function showFiles(fid){
	makePOSTRequest('js/php/showFiles.php',"fid="+fid,0);
}

function setAttr(doc,name,values,id1,level,fnctns){
	version=0
	if (navigator.appVersion.indexOf("MSIE")!=-1){
		temp=navigator.appVersion.split("MSIE")
		version=parseFloat(temp[1])
	}
	browserName=navigator.appName;
	browserVer=parseFloat(navigator.appVersion);
	if(browserName=="Netscape" && browserVer>=3){
		if(doc)doc.setAttribute(name,values);
	}else if(browserName=="Microsoft Internet Explorer"){
		if(doc)doc.setAttribute(name,function(){fnctns(id1,level)});
	}else{
		if(doc)doc.setAttribute(name,values);
	}
}