function pop_up(url, width, height) {
 var positionX=50;
 var positionY=50;

 windowHandle = window.open('','','toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1,fullscreen=0,width='+width+',height='+height+',top=10000,left=10000');
 windowHandle.resizeTo(width,height);
 windowHandle.moveTo(positionX,positionY);
 windowHandle.location = url;
}

function pop_up_henrietta(url, width, height, posX, posY) {
 var positionX=posX;
 var positionY=posY;

 windowHandle = window.open('','','toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1,fullscreen=0,width='+width+',height='+height+',top=10000,left=10000');
 windowHandle.resizeTo(width,height);
 windowHandle.moveTo(positionX,positionY);
 windowHandle.location = url;
}


function pop_up_no_scroll(url, width, height) {
 var positionX=50;
 var positionY=50;

 windowHandle = window.open('','','toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=1,fullscreen=0,width='+width+',height='+height+',top=10000,left=10000');
 windowHandle.resizeTo(width,height);
 windowHandle.moveTo(positionX,positionY);
 windowHandle.location = url;
}

function display_website(url) {
    if(document.all) {
        var width = document.body.offsetWidth*3/4;
        var height = document.body.offsetHeight*3/4;
    }
    else if (document.layers) {
        var width = window.innerWidth*3/4;
        var height = window.innerHeight*3/4;
    }
    else {
        var width=640;
        var height=480;
    }
 var positionX=50;
 var positionY=50;

 windowHandle = window.open('','','toolbar=1,location=1,directories=0,status=0,menubar=1,scrollbars=1,resizable=1,fullscreen=0,width='+width+',height='+height+',top=10000,left=10000');
 windowHandle.resizeTo(width,height);
 windowHandle.moveTo(positionX,positionY);
 windowHandle.location = url;
}