var slideTime = 700, topMargin;

	 	function empty(t){
			var regexp = "^ *$";
         if(eval(t.length) == 0 || t.match(regexp)) 
         { 
            return true; 
         } else {
					return false;
			  }
		}

var sWidth = screen.availWidth;

	
function hidObj(obj) {
	if (document.getElementById(obj) && document.getElementById(obj).style.display == 'block') {
		document.getElementById(obj).style.display = 'none';
	}
}
		

function showx(obj) {
	if (document.getElementById(obj)) {
		var o = document.getElementById(obj).style.display;
		document.getElementById(obj).style.display = ((o=='none') ? 'block' : 'none');
	}
}






function findPos(obj) {
	var curleft = curtop = 0;
	if (obj.offsetParent) {
		curleft = obj.offsetLeft
		curtop = obj.offsetTop
		while (obj = obj.offsetParent) {
			curleft += obj.offsetLeft
			curtop += obj.offsetTop
		}
	}
	return [curleft,curtop];
}



function getPos(obj) {
	var y = document.getElementById(obj);
	var pz = findPos(y);
	if (parseInt(pz[1]) > 0) {
		document.getElementById('prawo').style.height=(parseInt(pz[1])-160)+'px';
	}
}