function openImage(img, w, h){
		  img = "./images/"+img;
		  dimentions = "height="+h+", width="+w+ ", toolbar=no, menubar=no, scrollbars=no, resizable=no, location=no, directories=no, status=no";
			window.open(img , 'img', dimentions );
	}


function SimpleSwap(el,which){
  el.src=el.getAttribute(which || "origsrc");
}

function SimpleSwapSetup(){
  var x = document.getElementsByTagName("img");

  for(i=0; i <= x.length-1	 ;i++){
    var oversrc = x[i].getAttribute("oversrc");
    if (!oversrc) continue;

    // preload image
    // comment the next two lines to disable image pre-loading
    x[i].oversrc_img = new Image();
    x[i].oversrc_img.src=oversrc;
    // set event handlers
    x[i].onmouseover = new Function("SimpleSwap(this,'oversrc');");
    x[i].onmouseout = new Function("SimpleSwap(this);");
    // save original src
    x[i].setAttribute("origsrc",x[i].src);
  }
}

var PreSimpleSwapOnload =(window.onload)? window.onload : function(){};
window.onload = function(){PreSimpleSwapOnload(); SimpleSwapSetup();}