function hideValue(what, def)
{
	if(trim(what.value) == def)
	{
		what.value = "";
	}
	return;
}

function showValue(what, def)
{
	if(trim(what.value) == '')
	{
		what.value = def;
	}
	return;
}

// Removes leading whitespaces
function LTrim( value )
{
	var re = /\s*((\S+\s*)*)/;
	return value.replace(re, "$1");
	
}

// Removes ending whitespaces
function RTrim( value )
{
	var re = /((\s*\S+)*)\s*/;
	return value.replace(re, "$1");
	
}

// Removes leading and ending whitespaces
function trim( value )
{
	return LTrim(RTrim(value));
	
}

function loadImages(path, pics)
{
	pics_arr = pics.split(',');
	for(i=0; i < pics_arr.length; i++)
	{
		eval('c' + i + ' = new Image();');
		eval('c' + i + '.src = path + "' + pics_arr[i] + '";');
	}
}

function changeBgck(what, img)
{
	document.getElementById(what).style.backgroundImage = "url('"+img+"')";
	//document.getElementById(what).style.backgroundPosition = 'middle';
}

function preloadImages(img_array)
{
	pics_array = img_array.split(',');
	for(i = 0; i < pics_array.length; i++)
	{
		eval("c"+i+" = new Image; c"+i+".src = pics_array[i];");
	}
}

var timer_id;
var direction=0;
var curr = 0;
function scroll_iframe(frm,inc,dir)
{
  if (timer_id) clearTimeout(timer_id);
  if (window.frames[frm])
  {
    if (direction == 0)
    {
    	curr += inc;
    	window.frames[frm].scrollBy(0, inc);
    	if(curr >= window.frames[frm].document.body.offsetHeight)
    	{
    		direction = 1;
    		curr = window.frames[frm].document.body.offsetHeight;
    	}
    }
    else if (direction == 1)
    {
    	curr -= inc;
    	window.frames[frm].scrollBy(0, -inc);
    	if(curr <= 0)
    	{
    		direction = 0;
    		curr = 0;
    	}
    }
    //else window.frames[frm].scrollBy(inc, 0);
    timer_id = setTimeout("scroll_iframe('" + frm + "'," + inc + ",'" + dir + "')", 5);
  }
}

function stopScroll()
{
	if (timer_id) clearTimeout(timer_id);
}

function change_class(tid, cfg)
{
	if(cfg == 1) newclass = 'admin_button';
	else if(cfg == 2) newclass = 'admin_button_over';
	
	//var dtarget = document.getElementById(tid);
	
	tid.className = newclass;
}

Array.prototype.in_array = function ( obj )
{
	var len = this.length;
	for ( var x = 0 ; x <= len ; x++ )
	{
		if ( this[x] == obj ) return true;
	}
	return false;
}

function checkForm(formname, fields_array, errors_array)
{
	eval("var reg = document." + formname + ";");
	
	for(var i = 0; i < fields_array.length; i++)
	{
		eval("var curr_field = reg." + fields_array[i] + ";");
		if(trim(curr_field.value) == '')
		{
			alert(errors_array[i]);
			curr_field.focus();
			return false;
		}
	}
	reg.submit();
}

function expandCollapse(elid)
{
	if(document.getElementById(elid).style.display == '') Effect.BlindUp(elid);
	else Effect.BlindDown(elid);
}