function CheckEmail(str){
  var filter=/^([\w\-]+(\.[\w\-]+)*)@(([\w\-]+\.)*\w[\w\-]{0,66})\.([a-z]{2,6}(\.[a-z]{2})?)$/i;
  var testresults=true;
  if (filter.test(str))
    testresults=true;
    else{
      testresults=false;
    }
  return (testresults);
}
var cancelled=0;
function check()
{
	if(cancelled==0)
	{
	if(CheckEmail(document.getElementById('email').value)==false)
		{
    		alert('Enter correct Email!');
			return false;
		}
	return true;
	}
	else
	{
		return false;
	}
}

function updateSizes()
{

if(document.getElementById('WIN').checked==true)
 {                                                                                     
 	aS=winSize;
 	aV=winVer;
 }
 else
 {
 	aS=macSize;
 	aV=macVer;
 }

 for (var i=0;i<Total;i++)
 {
 	$('Span_'+i).innerHTML= '<span class="version">V '+aV[i]+'</span><span class="size">'+aS[i]+'</span>';
 	$('DownloadElement'+i).style.display=aS[i]==""?"none":"";	
 }
 
}