//opens window for external links

function extLink(addr) {

    //  "use strict";
    
    //  var extWindow, window;

var extWindow = window.open(addr, 'External_Link', 'toolbar=yes, location=yes, resizable=yes, scrollbars=yes, width=980, height=720');

    if(extWindow) extWindow.focus();

return false;
    
}



//  opens window for mp3 sound files

function soundFile(addr) {

    var mp3Window = window.open(addr, 'External_Link', 'resizable=yes, scrollbars=yes, width=680, height=380');

    if(mp3Window) mp3Window.focus();

return false;

}



//  code to write email address into web pages


function musicWriting(addr) {

    reviewsWindow = window.open(addr, 'External_Link', 'toolbar=yes, location=yes, resizable=yes, scrollbars=yes, width=1180, height=840');

    if(reviewsWindow) reviewsWindow.focus();

return false;

}



var eu1 = "ian";
var eu2 = "@";
var eu3 = "ianstewart";
var eu4 = ".";
var eu5 = "eu";


var contact3 = (eu1 + eu2 + eu3 + eu4 + eu5); 



//  code to verify that something is entered into search form and that no illegal characters are used
 
function verify() {

    entry = document.forms[0].elements[0].value;

    characters = entry.search(/[^a-zA-Z0-9_\-\s]/);

    if (entry.length < 1) { confirm("You have not entered anything into the search form!");

        return false;

        } else if (characters >= 0) { confirm("Please enter only letters, numbers, hyphens or underscores!");

        return false;
        
        } else {        
        
        return true;

	}

}