var new_width = 0;
var new_height = 0;
var space_factor = 30;


function Is() {
    agent = navigator.userAgent.toLowerCase();
    this.major = parseInt(navigator.appVersion);
    this.minor = parseFloat(navigator.appVersion);
    this.ns = ((agent.indexOf('mozilla') != -1) && ((agent.indexOf('spoofer')
    == -1)
         && (agent.indexOf('compatible') ==  -1)));
    this.ns2 = (this.ns && (this.major == 3));
    this.ns3 = (this.ns && (this.major == 3));
    this.ns4b = (this.ns && (this.major == 4) && (this.minor <= 4.03));
    this.ns4 = (this.ns && (this.major == 4));
    this.ns6 = (this.ns && (this.major >= 5));
    this.ie = (agent.indexOf("msie") != -1);
    this.ie3 = (this.ie && (this.major < 4));
    this.ie4 = (this.ie && (this.major == 4) && (agent.indexOf("msie 5.0")
     == -1));
    this.ie5 = (this.ie && (this.major == 4) && (agent.indexOf("msie 5.0")
     != -1));
    this.ie55 = (this.ie && (this.major == 4) && (agent.indexOf("msie 5.5")
     != -1));
    this.ie6 = (this.ie && (agent.indexOf("msie 6.0")!=-1) );
    this.aol = (agent.indexOf("aol") != -1);
    this.aol3 = (this.aol && this.ie3);
    this.aol4 = (this.aol && this.ie4);
    this.aol5 = (this.aol && this.ie5);
}

function sizeit() {
    
    var available_width;
    var available_height;
    
    var is = new Is();

    if(is.ns4 || is.ns6) {
	available_width = innerWidth - space_factor;
	available_height = innerHeight - space_factor;
    }
    else if(is.ie4 || is.ie5 || is.ie55 || is.ie6) {
	available_width = document.body.clientWidth - space_factor;
	available_height = document.body.clientHeight - space_factor;
    }
    if(is.ie4 || is.ie5 || is.ie55 || is.ie6 || is.ns6 || is.ns4) {
	if(theimg.width >= theimg.height) {
	    new_width = available_width;
	    // alert("w:" + theimg.width + ",h:" + theimg.height);
	    new_height = parseInt(theimg.height * new_width/theimg.width);
	    // alert("newheight:" + new_height);
	}
	else {
	    new_height = available_height;
	    new_width = parseInt(theimg.width * new_height/theimg.height);
	}
    }
    else {
	new_width = theimg.width;
	new_height = theimg.height;
    }
    var display = document.getElementById("display");
    var frame_inner = document.getElementById("inner");
    
    display.innerHTML = '<img align="absmiddle" alt="' +imgtitle + '" src="' + theimg.src  + '" width="' + new_width + '" height="' + new_height + '" border=1>';
    display.style.visibility = 'visible';
    frame_inner.width = new_width;
    frame_inner.height = new_height;
}