function getElementValue(element) {
	switch(element.type) {
		case 'text':
		case 'hidden':
		case 'password':
			return element.value;
		case 'checkbox':
			return (element.checked ? element.value : '');
	}
}

function getBrowserSize() {
 var myWidth = 800, myHeight = 600;
 if(typeof(window.innerWidth) == 'number') {
  //Non-IE
  myWidth = window.innerWidth;
  myHeight = window.innerHeight;
 }else if(document.documentElement &&
  (document.documentElement.clientWidth || document.documentElement.clientHeight)) {
  //IE 6+ in 'standards compliant mode'
  myWidth = document.documentElement.clientWidth;
  myHeight = document.documentElement.clientHeight;
 } else if(document.body && (document.body.clientWidth || document.body.clientHeight)) {
  //IE 4 compatible
  myWidth = document.body.clientWidth;
  myHeight = document.body.clientHeight;
 }
 return [myWidth, myHeight];
}