// Javascript

function srcChanger(that, sign)
{
	if(that.src.indexOf('_h.gif') == -1 && sign == 1)
		that.src = that.src.replace(/\.gif/g, "_h.gif");

	else
		that.src  = that.src.replace(/\_h.gif/g, ".gif");
}

function okHover(getId, sign)
{
	document.getElementById(getId).src = (sign == 1) ? 'img/ok_blue.gif' : 'img/ok_green.gif';	
}

function okGray(getId, sign)
{
	document.getElementById(getId).src = (sign == 1) ? 'img/ok_green.gif' : 'img/ok.gif';	
}

function okMenu(getId, sign)
{
	document.getElementById(getId).src = (sign == 1) ? 'img/ok_blue.gif' : 'img/ok.gif';	
}


function hider(getId)
{
	var obj = document.getElementById(getId);

	if(obj.getAttribute('sign') != '-') {
		obj.style.display = 'none';
		obj.setAttribute('sign','-');
	}

	else {
		obj.style.display = 'inline';
		obj.setAttribute('sign','+');
	}
}

var actrow = -1;
function act(row) {
	r = document.getElementById("ed_"+row);
	if (actrow == row) {
		r.style.display = "none";
		actrow=-1;
		return;
	} else if (actrow!=-1) {
		or = document.getElementById("ed_"+actrow);
		or.style.display = "none";
	}
	if (document.all && !(navigator.userAgent.indexOf("Opera")>-1)) {
		r.style.display = "block";
	} else {
		r.style.display = "table-row";
	}
	actrow=row;
}
	function showform(f) {
		but = document.getElementById(f+'_but');
		buts = document.getElementById(f+'_buts');
		h = document.getElementById(f+'_h');
		s = document.getElementById(f+'_s');
		but.style.display = "none";
		buts.style.display = "block";
		h.style.display = "none";
		s.style.display = "block";
	}

function opacity(id, opacStart, opacEnd, millisec) {
    //speed for each frame
    var speed = Math.round(millisec / 100);
    var timer = 0;
    //determine the direction for the blending, if start and end are the same nothing happens
    if(opacStart > opacEnd) {
        for(i = opacStart; i >= opacEnd; i--) {
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
    } else if(opacStart < opacEnd) {
        for(i = opacStart; i <= opacEnd; i++)
            {
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
    }
}

//change the opacity for different browsers
function changeOpac(opacity, id) {
    var object = document.getElementById(id).style;
    object.opacity = (opacity / 100);
    object.MozOpacity = (opacity / 100);
    object.KhtmlOpacity = (opacity / 100);
    object.filter = "alpha(opacity=" + opacity + ")";
}