function smallFontSize() {
   document.getElementById("small-font").style.backgroundColor = "#c1cfe1";
   document.getElementById("medium-font").style.backgroundColor = "#fff";
   document.getElementById("large-font").style.backgroundColor = "#fff";
   document.getElementById("small-font").style.color = "#fff";
   document.getElementById("medium-font").style.color = "#c1cfe1";
   document.getElementById("large-font").style.color = "#c1cfe1";
   var p = document.getElementById("bwm-content").getElementsByTagName('p');
   var ul = document.getElementById("bwm-content").getElementsByTagName('ul');
   var table = document.getElementById("bwm-content").getElementsByTagName('table');
   for(i=0;i<p.length;i++) {
      p[i].style.fontSize = "1em";
   }
   var ul = document.getElementById("bwm-content").getElementsByTagName('ul');
   for(i=0;i<p.length;i++) {
      ul[i].style.fontSize = "1em";
   }
   var table = document.getElementById("bwm-content").getElementsByTagName('table');
   for(i=0;i<p.length;i++) {
      table[i].style.fontSize = "1em";
   }
}
function mediumFontSize() {
   document.getElementById("small-font").style.backgroundColor = "#fff";
   document.getElementById("medium-font").style.backgroundColor = "#c1cfe1";
   document.getElementById("large-font").style.backgroundColor = "#fff";
   document.getElementById("small-font").style.color = "#c1cfe1";
   document.getElementById("medium-font").style.color = "#fff";
   document.getElementById("large-font").style.color = "#c1cfe1";
   var p = document.getElementById("bwm-content").getElementsByTagName('p');
   var ul = document.getElementById("bwm-content").getElementsByTagName('ul');
   var table = document.getElementById("bwm-content").getElementsByTagName('table');
   for(i=0;i<p.length;i++) {
      p[i].style.fontSize = "1.2em";
   }
   var ul = document.getElementById("bwm-content").getElementsByTagName('ul');
   for(i=0;i<p.length;i++) {
      ul[i].style.fontSize = "1.2em";
   }
   var table = document.getElementById("bwm-content").getElementsByTagName('table');
   for(i=0;i<p.length;i++) {
      table[i].style.fontSize = "1.2em";
   }
}
function largeFontSize() {
   document.getElementById("small-font").style.backgroundColor = "#fff";
   document.getElementById("medium-font").style.backgroundColor = "#fff";
   document.getElementById("large-font").style.backgroundColor = "#c1cfe1";
   document.getElementById("small-font").style.color = "#c1cfe1";
   document.getElementById("medium-font").style.color = "#c1cfe1";
   document.getElementById("large-font").style.color = "#fff";
   var p = document.getElementById("bwm-content").getElementsByTagName('p');
   var ul = document.getElementById("bwm-content").getElementsByTagName('ul');
   var table = document.getElementById("bwm-content").getElementsByTagName('table');
   for(i=0;i<p.length;i++) {
      p[i].style.fontSize = "1.4em";
   }
   var ul = document.getElementById("bwm-content").getElementsByTagName('ul');
   for(i=0;i<p.length;i++) {
      ul[i].style.fontSize = "1.4em";
   }
   var table = document.getElementById("bwm-content").getElementsByTagName('table');
   for(i=0;i<p.length;i++) {
      table[i].style.fontSize = "1.4em";
   }
}

function clearField(field, text) {
	if (field.value == text) { field.value = ""; }
	return;
}

function fillField(field, text) {
	if (isblank(field.value)) { field.value = text; }
	return;
}

function isblank(x) {
	var blank = true;
	for (i = 0; i < x.length; i++) {
		if (x.charAt(i) != ' ') { blank = false; }
	}
	return blank;
}