var instrArr = new Array();
var instrPath = 'http://chasewolf.com/journal/instr/';
var instrContainerId = 'instrctr';
var instrFtrContainerId = 'ftrinstrctr';

function instr(_name,_mar){
	this.name=_name;
	this.mar=_mar;
}

function crInstr(){
	instrArr.push( new instr('wine', 15) );
	instrArr.push( new instr('bassoon', 7) );
	instrArr.push( new instr('bass', 15) );
	instrArr.push( new instr('trumpet', 5) );
}

function doInstr(){

	crInstr();
	var ctnt = '';

	for(var __instrI=0;__instrI<10;__instrI++){
		if(instrArr.length<=0)break;	
		var index=Math.floor(Math.random()*instrArr.length);
		ctnt += '<img src="'+instrPath+instrArr[index].name+'.jpg" alt="CW J" style="margin-right:'+ instrArr[index].mar+'px;margin-left:'+ instrArr[index].mar+'px;" />\n';
		instrArr.splice(index,1);
	}
	
	var instrD=document.getElementById(instrContainerId);
	if(instrD) instrD.innerHTML = ctnt;
}

function doFtrInstr(){
	var arr = [ new instr('wf','margin-bottom: -5px; margin-left:45px'), new instr('wu',''), new instr('wu',''), new instr('wu','') ];
	var c = arr[ Math.floor(Math.random()*arr.length) ];

	var ctnt = '<img src="'+instrPath+c.name+'.jpg" style="'+c.mar+'" alt="CW J" />\n';
	var instrD=document.getElementById(instrFtrContainerId);
	if(instrD) instrD.innerHTML = ctnt;	
}