function endsWith(str,ext){
		var arr = str.split(".");
		var arrExt = ext.split(",");
		var j=0;
		for(j=0;j<arrExt.length;j++)
		{
			if(arr[arr.length-1]==arrExt[j])
				return true;
		}
		return (false);
		}	
		
function isNull(aStr)
	{
		var index;		
		for (index=0; index < aStr.length; index++)
			if (aStr.charAt(index) != ' ')
				return false;
		return true;
	}
	
var reEmail=/^.+\@.+\..+$/
var phone=/^[0-9]+(-|\s?)+[0-9]+(-|\s?)+[0-9]+$/
	function validate()
	{
		if (document.forms[0].fname.value.length<1)
		{
			alert("Please enter your name.");
			document.forms[0].fname.focus();
			return false;
		}
		else if (document.forms[0].email.value.length<1)
		{
			alert("Please enter your email address.");
			document.forms[0].email.focus();
			return false;
		}
		else if(!reEmail.test(document.forms[0].email.value))
		{
			alert("Please enter a valid email address");
			document.forms[0].email.focus();
			return false;
		}
		else
		{
			return true;
		}
	}