function toggle(targetId ){

  if (document.getElementById){
  		target = document.getElementById( targetId );
  			if (target.style.display == "none"){
  				target.style.display = "";
  			} else {
  				target.style.display = "none";
  			}
  	}
  	
}
function PadDigits(string, newlength) {
	var pad = "";
	var len = newlength-String(string).length;
	var i;
	for (i = 0; i<len; i++) {
		pad += "0";
	}
	return pad+string;
}
function colm(a,i,bla) {
	alert(bla);
	if (document.getElementById){
		var e = document.getElementById( bla );
		if (e && e.style.display == 'none') {
			alert(e.style.display);
			e.style.display = '';
			a.src = 'pic/b_minus.png';
			for (x = 1; x <= i; x++)
			{
				var num = PadDigits(x,4);
				var doc = document.getElementById(num);
				doc.style.display = '';
			}
		}
		else if (e) {
			e.style.display = 'none';
			a.src = 'pic/b_plus.png';
			for (x = 1; x <= i; x++)
			{
				var num = PadDigits(x,4);
				var doc = document.getElementById(num);
				doc.style.display = 'none';
			}
		}
	}
}