function mouse_over(img)
{     
   var src = img.src + '';
   var p1  = src.indexOf('_norm.');
   var p2  = p1 + 6; 
   img.src = src.substr(0, p1) + '_over.' + src.substr(p2);
}

function mouse_out(img)
{
   var src = img.src + '';
   var p1  = src.indexOf('_over.');
   var p2  = p1 + 6;    
   img.src = src.substr(0, p1) + '_norm.' + src.substr(p2);
}

function spamblock(address)
{
   window.location=(rot13(address));
}

function rot13(input)
{
   var lcAlpha = "abcdefghijklmnopqrstuvwxyz";
   var ucAlpha = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
   var newAlpha = new Array();
   
   for (i = 0; i < lcAlpha.length; i++)
   {
      newAlpha[lcAlpha.charAt(i)] = lcAlpha.charAt((i+13) % 26);
      newAlpha[ucAlpha.charAt(i)] = ucAlpha.charAt((i+13) % 26);
   }
   
   var output = "";
   for (i = 0; i < input.length; i++)
   {
      var c = input.charAt(i);
      output += ((c >= 'A' && c <= 'Z') || ( c >= 'a' && c <= 'z') ? newAlpha[c] : c);
   }
   return output;
}

function getPageSize(){

	var xScroll, yScroll;

	if (window.innerHeight && window.scrollMaxY) {
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else if (document.documentElement && document.documentElement.scrollHeight > document.documentElement.offsetHeight){ // Explorer 6 strict mode
		xScroll = document.documentElement.scrollWidth;
		yScroll = document.documentElement.scrollHeight;
	} else { // Explorer Mac...would also work in Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}

	var windowWidth, windowHeight;
	if (self.innerHeight) { // all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}

	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else {
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){
		pageWidth = windowWidth;
	} else {
		pageWidth = xScroll;
	}

	arrayPageSize = new Array(pageWidth, pageHeight, windowWidth, windowHeight)
	
	return arrayPageSize;
}

function fixMenuHeight()
{
	$('leftColumn').style.height = getPageSize()[1] - 4 + 'px';
}