function changeImages() {
	if (document.images) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function mOvr(src,clrOver) {
	if (!src.contains(event.fromElement)) {
		src.style.cursor = 'hand'; src.bgColor = clrOver;
	}
}

function mOut(src,clrIn) {
	if (!src.contains(event.toElement)) {
		src.style.cursor = 'default';
		src.bgColor = clrIn;
	}
}

function resizeToTable() {
	var table = document.getElementById("content");
	height = table.clientHeight + 40;
	window.resizeTo(248,height)
}

function popUp(url, width, height, scroll) {
	subWin = window.open(url, 'Info', 'toolbar=0,scrollbars=' + scroll + ',location=0,statusbar=0,menubar=0,resizable=0,width=' + width + ',height=' + height);
	subWin.focus();
}

function setcookie(value){
    var expiredays = 1;
    var ExpireDate = new Date ();
    ExpireDate.setTime(ExpireDate.getTime() + (expiredays * 24 * 3600 * 1000));
    document.cookie = "referral=" + escape(value) + ";expires=" + ExpireDate.toGMTString(); 
  }

function parseQueryString () {
    var str = location.href;
    var query = str.substr(str.indexOf("?", str) + 1);          //str.charAt(0) == '?' ? str.substring(1) : str;
    if (query) {
     var fields = query.split('&');
      for (var f = 0; f < fields.length; f++) {
        var field = fields[f].split('=');
        if (field[0] == "ref"){
          setcookie(field[1]) 
        }
      }
    }
  }
parseQueryString();