function galeria(id)
{
	window.open('galeria_read.php?id='+id,'galeria'+id,'width=800,height=550,left=0,top=0,scrollbars=yes,status=no,address=no,menu=no');
}
function galeria2(id)
{
	window.open('galeria_read2.php?id='+id,'galeria'+id,'width=800,height=600,left=0,top=0,scrollbars=yes,status=no,address=no,menu=no');
}
function galeria3(id)
{
	window.open('/galeria_read3.php?id='+id,'galeria'+id,'width=800,height=600,left=0,top=0,scrollbars=yes,status=no,address=no,menu=no');
}

var err;
var Aheight=314;

function getHeight(elem) {
	return elem.offsetHeight;
}

var control = false;
var dir = "";
function scrollText(direction) {
	dir = direction;
	control = true;
	move();
}

function stopScroll() {
	control = false;
}

function scrollPos() {
	var pin = document.getElementById('scrollPin');
	var area = document.getElementById("textarea");
	var text = document.getElementById("textsquare");
	var Htext = text.offsetHeight;
	var Harea = area.offsetHeight;
	var math = /[^-1234567890]/;
	var Ttop = text.style.top
	while(math.test(Ttop)) {
		Ttop = Ttop.replace(math,"");
	}
	var maxPH = 314;
	var minPH = 16;
	var scrollArea = Htext-Harea;
	var pinHeight = Harea;
	var A = scrollArea;
	var B = scrollArea / Htext;
	A = (pinHeight - A) * B;
	pinHeight = A;
	B = scrollArea + top;
	if( B != scrollArea) {
		A = (top*(-1)) / scrollArea;
		B = pinHeight;
		B = B * A;
		
	}
}
/*	var Htext = getHeight(obj);
	var Harea = getHeight(area);
	var Arol = Htext - Harea;
	var top = obj.style.top;	
	var math = /[^-1234567890]/;
	while(math.test(top)) {
		top = top.replace(math,"");
	}

	var pinHeight = getHeight('scrollPin');
	var scrollingArea = area-34;
	var maxPH = 314;
	var minPH = 16;
	var cf = Htext / maxPH;
	var rolado = Arol + top;
	var pinHeight = maxPH * Math.floor(Arol/Htext);
	if(pinHeight > minPH && pinHeight < maxPH ) {
		pin.height=pinHeight+"px";		
	}
	Arol+top
	var A = Harea-Htext;
	var B = top / A;						//percents of text scrollDown
	var pinTop = (Aheight-pinHeight) * B;
//	pin.style.top = Math.floor(pinTop)+"px";
//	arrow.style.top = (Aheight-50-pinTop)+"px";
*/
function move() {
	//control==true && 
	if(dir!="") {
		var area = document.getElementById("textarea");
		var obj = document.getElementById("textsquare");
		var vText = getHeight(obj);
		var vArea = getHeight(area);
		var top = obj.style.top;
		var math = /[^-1234567890]/;
		while(math.test(top)) {
			top = top.replace(math,"");
		}
		if(dir == "up") {
			if(top<0) {
				obj.style.top = (top*1+25)+"px";
			}
		} else if(dir == "down") {
			if(top>vArea-vText) {
				obj.style.top = (top-25)+"px";
			}
		}
		scrollPos();
	}	
}

//setInterval("move()",100);

function showImg(item,img,descr) {
	var targ = document.getElementById('image1');	
	var d = document.getElementById('image1_descr');
	AjaxGet("fotox.php","f="+img,'image1','GET');
	targ.style.display = 'block';
	d.innerHTML=descr;
	item.onmouseout = function () {
		var x = document.getElementById('image1');
		x.style.display = 'none';
		x.innerHTML="";
		x = document.getElementById('image1_descr');
		x.innerHTML="";
	}
}