function calculateSize() {
	  var myWidth = 0, myHeight = 0;
	  if( typeof( window.innerWidth ) == 'number' ) {
		//Non-IE
		myWidth = window.innerWidth+200;
		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;
	  }
	  //window.alert( 'Width = ' + myWidth );	  alert(myWidth);
	  return (myWidth-200)/2//window.alert( 'Height = ' + myHeight );
	}
	
	// JavaScript Document
//var absPath = 'http://www.priceedwards.com/';
var isIE = document.all?true:false;

function getElement(id){   
	if(document.getElementById){ 
		// test the most common method first. Most browsers won't get past this test        
		return document.getElementById(id);  
	 }
	 else if(document.all){ 
	 	// test older versions of IE        
		return document.all[id];    
	}
	else if(document.layers){ 
	// test older versions of Netscape        
		return document.layers[id];    
	}
	else{ // not sure what to do...return null        
		return null;    }
}

function getMousePosition(e) {
  var _x;
  var _y;
  if (!isIE) {
    _x = e.pageX;
    _y = e.pageY;
  }
  if (isIE) {
    _x = event.clientX + document.body.scrollLeft;
    _y = event.clientY + document.body.scrollTop;
  }
  return Array(_x,_y);
}

function getWindowSize() {
  var myWidth = 0, myHeight = 0;
  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 Array(myWidth, myHeight);
}

function isNumberKey(evt)
{
	var charCode = (evt.which) ? evt.which : event.keyCode
    if (charCode > 31 && (charCode < 48 || charCode > 57))
    	return false;

    return true;

}