// 100WHF JavaScript 

function preloadImages() {
	if(document.images)	{
    	if(!document.imageArray) document.imageArray = new Array();
		var i,j = document.imageArray.length, args = preloadImages.arguments;
    	for(i=0; i<args.length; i++) {
			if (args[i].indexOf("#")!=0) {
				document.imageArray[j] = new Image;
				document.imageArray[j++].src = 'images/'+args[i];
			}
    	}
  	}
}

function preloadBackgrounds() {
	preloadImages( 'backgrounds/BlueBackground_1581_cropped.jpg'
				 , 'backgrounds/GreenBackground_1581_cropped.jpg'
				 , 'backgrounds/LavendarBackground_1581_cropped.jpg'
				 , 'backgrounds/OrangeBackground_1581_cropped.jpg'
				 , 'backgrounds/YellowBackground_1581_cropped.jpg'
				 );
    var ver = getInternetExplorerVersion();
  	if ( ver > -1 ) {
    	if ( ver <= 8.0 ) {
			var bg_size = 1305;
			if (screen_size == "big") {
				bg_size = 1581;
			}
			preloadImages( 'backgrounds/BlueBackground_'+bg_size+'.jpg'
						 , 'backgrounds/GreenBackground_'+bg_size+'.jpg'
						 , 'backgrounds/LavendarBackground_'+bg_size+'.jpg'
						 , 'backgrounds/OrangeBackground_'+bg_size+'.jpg'
						 , 'backgrounds/YellowBackground_'+bg_size+'.jpg'
						 );
		}
	}
}

function outputLogo() {
	var img_ext = "png";
    var ver = getInternetExplorerVersion();
  	if ( ver > -1 || ver < 7.0 ) {
		// for ie6 use gif
		img_ext = "gif";
	}
	var img_width = 95;
	var img_height = 81;
	var img_name = "100whfLogo_95."+img_ext;
	if (screen_size == "big") {
		img_width = 116;
		img_height = 99;
		img_name = "100whfLogo_116."+img_ext;
	}
	document.write('<a href="index.php">');
	document.write('<img src="images/'+img_name+'" alt="100 Women in Hedge Funds" height="'+img_height+'" width="'+img_width+'" border="0" class="logo" />');
	document.write('</a>');
}

function outputSocialMedia() {
	var img_size = 22;
	if (screen_size == "big") {
		img_size = 26;
	}
    document.write('<ul>');
    document.write('<li><a href="http://www.facebook.com/pages/100-Women-in-Hedge-Funds/266135331079" target="_blank"><img src="images/Facebook_'+img_size+'.gif" height="'+img_size+'" width="'+img_size+'" alt="Facebook" class="facebooklink" border="0" /></a></li>');
    document.write('<li><a href="http://www.linkedin.com/groups?mostPopular=&amp;gid=2517953&amp;trk=myg_ugrp_ovr" target="_blank"><img src="images/LinkedIn_'+img_size+'.gif" height="'+img_size+'" width="'+img_size+'" alt="LinkedIn" class="linkedinlink" border="0" /></a></li>');
    document.write('<li><a href="http://www.twitter.com/100_WHF" target="_blank"><img src="images/Twitter_'+img_size+'.gif" height="'+img_size+'" width="'+img_size+'" alt="Twitter" class="linkedinlink" border="0" /></a></li>');
    document.write('<li><a href="http://connect.100whf.org" target="_blank"><img src="images/connect-mini-logo5-small.png" height="'+img_size+'" width="'+img_size+'" alt="100WHF Connect!" class="linkedinlink" border="0" /></a></li>');
    document.write('</ul>');
}

// Returns the version of Internet Explorer or a -1
// (indicating the use of another browser).
function getInternetExplorerVersion() {
  var rv = -1; // Return value assumes failure.
  if (navigator.appName == 'Microsoft Internet Explorer')
  {
    var ua = navigator.userAgent;
    var re  = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
    if (re.exec(ua) != null)
      rv = parseFloat( RegExp.$1 );
  }
  return rv;
}

// email address functions
function setLinkTarget(anchortag,num) {
	switch(num) {
		case 1:
			anchortag.href=unescape("mai"+"lto%3"+"Aadmini"+"stration%4"+"0100wo"+"meninhedgefunds%2"+"Eorg");
			break;
		case 2:
			anchortag.href=unescape("mai"+"lto%3"+"Aswiss"+"charity%4"+"0100wo"+"meninhedgefunds%2"+"Eorg");
			break;
		case 3:
			anchortag.href=unescape("mai"+"lto%3"+"Alugano"+"milano%4"+"0100wo"+"meninhedgefunds%2"+"Eorg");
			break;
	}
}

function getElement(id) {
	var element=null;
	if (document.getElementById) {
		element = document.getElementById(id);
	} else if (document.all) {
		element = document.all[id];
	} 
	return element;
}

function submitForm(id){
	var btn = getElement(id);
	if (btn) {
  		btn.disabled = true;
	}
  	return true;
}