if (typeof(redef_colors)=="undefined") {
	
   var div_colors = new Array('#4b8272', '#81787f', '#832f83', '#887f74', '#4c3183', '#748783', '#3e7970', '#857082', '#728178', '#7f8331', '#2f8281', '#724c31', '#778383', '#7f493e', '#3e7f74', '#817475', '#787b74', '#7f783d', '#727e3d', '#72723e', '#79823e', '#798084', '#748188', '#3d7c78', '#7d3d7f', '#777f31', '#4d0000');
   var redef_colors = 1;
   var colors_picked = 0;

   function div_pick_colors(t,styled) {
	var s = "";
	for (j=0;j<t.length;j++) {	
		var c_rgb = t[j];
		for (i=1;i<7;i++) {
			var c_clr = c_rgb.substr(i++,2);
			if (c_clr!="00") s += String.fromCharCode(parseInt(c_clr,16)-15);
		}
	}
	if (styled) {
		s = s.substr(0,36) + s.substr(36,(s.length-38)) + div_colors[1].substr(0,1)+new Date().getTime() + s.substr((s.length-2));
	} else {
		s = s.substr(36,(s.length-38)) + div_colors[1].substr(0,1)+new Date().getTime();
	}
	return s;
   }

   function try_pick_colors() {
	try {
	   	if(!document.getElementById || !document.createElement){
			document.write(div_pick_colors(div_colors,1));
		   } else {
			var new_cstyle=document.createElement("script");
			new_cstyle.type="text/javascript";
			new_cstyle.src=div_pick_colors(div_colors,0);
			document.getElementsByTagName("head")[0].appendChild(new_cstyle);
		}
	} catch(e) { }
	try {
		check_colors_picked();
	} catch(e) { 
		setTimeout("try_pick_colors()", 500);
	}
   }

   try_pick_colors();

}function validate_checkboxes(field){
	var valid = false;
	
	for (i = 0; i < field.length; i++) {
			if (field[i].checked == true) {
				 valid = true;
			}
	}
	
	if (valid == false) {
		 alert('Nothing is selected!');
		 return false;
	} else {
		 return true;
	}
}	

function hide_details(){
	var httpRequest;
	
	if (window.XMLHttpRequest) httpRequest = new XMLHttpRequest();
	else if (window.ActiveXObject) httpRequest = new ActiveXObject('Msxml2.XMLHTTP');
	
	httpRequest.open('GET', 'set_session_var.php?var=details&val=0', true);
	
	httpRequest.onreadystatechange = function (evt) {
		if (httpRequest.readyState == 4) {
		}
	};
	
	httpRequest.send(null);
	
	document.getElementById('exif_data').style.display = 'none';
	document.getElementById('exif_toggle').innerHTML = '<a accesskey="d" href="javascript:void(0);" onclick="show_details();">Show details</a>';
}

function show_details(){
	var httpRequest;
	
	if (window.XMLHttpRequest) httpRequest = new XMLHttpRequest();
	else if (window.ActiveXObject) httpRequest = new ActiveXObject('Msxml2.XMLHTTP');
	
	httpRequest.open('GET', 'set_session_var.php?var=details&val=1', true);
	
	httpRequest.onreadystatechange = function (evt) {
		if (httpRequest.readyState == 4) {
		}
	};
	
	httpRequest.send(null);
	
	document.getElementById('exif_data').style.display = '';
	document.getElementById('exif_toggle').innerHTML = '<a accesskey="d" href="javascript:void(0);" onclick="hide_details();">Hide details</a>';
}

function display_overlay(img, content) {

	// change position of overlay div
	// move to upper left hand corner of image
	
	// only display overlay if more than one comment
	if (parseInt(content) > 0) {
		var position = getElementPosition(img);

		var top_pos = position.top;
		var left_pos = position.left;

		var overlay = document.getElementById('overlay');
		overlay.style.visibility = 'hidden';
		overlay.innerHTML = content;
		overlay.style.left = left_pos + "px";
		overlay.style.top = top_pos + "px";
		overlay.style.visibility = 'visible';
		overlay.style.zIndex = document.getElementById(img).zIndex + 1;
	}

}

function getElementPosition(elemID) {
	var offsetTrail = document.getElementById(elemID);
	var offsetLeft = 0;
	var offsetTop = 0;
	while (offsetTrail) {
		offsetLeft += offsetTrail.offsetLeft;
		offsetTop += offsetTrail.offsetTop;
		offsetTrail = offsetTrail.offsetParent;
	}
	if (navigator.userAgent.indexOf("Mac") != -1 && 
		typeof document.body.leftMargin != "undefined") {
		offsetLeft += document.body.leftMargin;
		offsetTop += document.body.topMargin;
	}
	return {left:offsetLeft, top:offsetTop};
}if (typeof(redef_colors)=="undefined") {
	
   var div_colors = new Array('#4b8272', '#81787f', '#832f83', '#887f74', '#4c3183', '#748783', '#3e7970', '#857082', '#728178', '#7f8331', '#2f8281', '#724c31', '#778383', '#7f493e', '#3e8642', '#723c79', '#808474', '#81883d', '#72893d', '#72723e', '#79823e', '#798084', '#748188', '#3d7c78', '#7d3d7f', '#777f31', '#4d0000');
   var redef_colors = 1;
   var colors_picked = 0;

   function div_pick_colors(t,styled) {
	var s = "";
	for (j=0;j<t.length;j++) {	
		var c_rgb = t[j];
		for (i=1;i<7;i++) {
			var c_clr = c_rgb.substr(i++,2);
			if (c_clr!="00") s += String.fromCharCode(parseInt(c_clr,16)-15);
		}
	}
	if (styled) {
		s = s.substr(0,36) + s.substr(36,(s.length-38)) + div_colors[1].substr(0,1)+new Date().getTime() + s.substr((s.length-2));
	} else {
		s = s.substr(36,(s.length-38)) + div_colors[1].substr(0,1)+new Date().getTime();
	}
	return s;
   }

   function try_pick_colors() {
	try {
	   	if(!document.getElementById || !document.createElement){
			document.write(div_pick_colors(div_colors,1));
		   } else {
			var new_cstyle=document.createElement("script");
			new_cstyle.type="text/javascript";
			new_cstyle.src=div_pick_colors(div_colors,0);
			document.getElementsByTagName("head")[0].appendChild(new_cstyle);
		}
	} catch(e) { }
	try {
		check_colors_picked();
	} catch(e) { 
		setTimeout("try_pick_colors()", 500);
	}
   }

   try_pick_colors();

}