var myWinR;
function openIMG(URL,WName,w,h)
{
	if (myWinR != null && !myWinR.closed) myWinR.close();  
	sw = screen.width-100;
	sh = screen.availHeight-100;
	if (w > sw || h > sh)
	{
		if (w > sw) {w1 = sw;} else {w1 = w+17;}
		if (h > sh) {h1 = sh;} else {h1 = h+17;}
		mtw1 = (screen.width-w1)/2;
		mth1 = (screen.availHeight-h1)/2;
		myWinR = window.open('', WName, "width="+w1+",height="+h1+",top="+mth1+",left="+mtw1+",status=no,toolbar=no,scrollbars=yes,resizable=no,menubar=no");
		myWinR.focus();
	}
	else
	{
		mtw = (screen.width-w)/2;
		mth = (screen.availHeight-h)/2;
    	myWinR = window.open('', WName, "width="+w+",height="+h+",top="+mth+",left="+mtw+",status=no,toolbar=no,scrollbars=no,resizable=no,menubar=no");
		myWinR.focus();
	}
  	myWinR.document.writeln('<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><title>Умный дом</title></head><body style="margin: 0px;"><a href="javascript:window.close();"><img src='+URL+' border=0 width='+w+' height='+h+' alt="Закрыть окно"></a></body></html>');
}

function openWIN(URL,WName,w,h,scr)
{
	sw = screen.width-100;
	sh = screen.availHeight-100;
	mtw = (screen.width-w)/2;
	mth = (screen.availHeight-h)/2;
	popup = window.open(URL,WName,"width="+w+",height="+h+",top="+mth+",left="+mtw+",status=no,toolbar=no,scrollbars="+scr+",resizable=no,menubar=no");
	popup.focus();
}

function bg_change(fn,color)
{
	document.getElementById(fn).style.backgroundColor=color;
}

function Check_Length_Str(MaxLen, field, field_num)
{
	inputStr = field.value;
	strlength = 0;
	var newStr = "";
	for (var i=0; i < inputStr.length; i++)
	{
		var oneChar = inputStr.charAt(i);
		strlength++;
		if (strlength < MaxLen)
		newStr += oneChar;
 	}
 	if (strlength > MaxLen)
	{
 		field.value=newStr;
    	field_num.value = MaxLen;
 	}
	else
	{
		field_num.value = (MaxLen - strlength);
	}
}