function ltrim(s)
{
	return s.replace(/^\s*/,"");
}
function rtrim(s)
{
	return s.replace(/\s*$/,"");
}
function trim(s)
{
	return rtrim(ltrim(s));
} 

function emailCheck(emailStr)
{
	var emailPat=/^(.+)@(.+)$/
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
	var validChars="\[^\\s" + specialChars + "\]"
	var quotedUser="(\"[^\"]*\")"
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
	var atom=validChars + '+'
	var word="(" + atom + "|" + quotedUser + ")"
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
	var matchArray=emailStr.match(emailPat)
	if (matchArray==null) {
		return false
	}
	var user=matchArray[1]
	var domain=matchArray[2]
	if (user.match(userPat)==null) {
		return false
	}
	var IPArray=domain.match(ipDomainPat)
	if (IPArray!=null) {
		for (var i=1;i<=4;i++) {
			if (IPArray[i]>255) {
				return false
			}
		}
		return true
	}
	var domainArray=domain.match(domainPat)
	if (domainArray==null) {
		return false
	}
	var atomPat=new RegExp(atom,"g")
	var domArr=domain.match(atomPat)
	var len=domArr.length
	if (domArr[domArr.length-1].length<2 || domArr[domArr.length-1].length>4) {
		return false
	}

	if (len<2) {
		return false
	}
return true;
} 


function validateForm()
{
	var flag = true;
	var sErrStr = ""; 
	var j=0;
	var sFieldName = "";
	var validChars = /\W/;
	if(trim(document.contactform.yourfirstname.value)=="")
	{
	   sErrStr +="First Name\n";
		if(sFieldName == "")
		sFieldName="yourfirstname";
	}
	 
	 
	if(trim(document.contactform.yourphone.value)=="")
	{
	   sErrStr +="Phone Number\n";
		if(sFieldName == "")
		sFieldName="yourphone";			   
	}
	if(trim(document.contactform.youremail.value)=="")
	{
	   sErrStr +="E-mail Address\n";
		if(sFieldName == "")
		sFieldName="youremail";

	}
	else if (!emailCheck(document.contactform.youremail.value)) 
	{ 
		sErrStr += "Valid E-mail Address\n"
		if (sFieldName == "")
		sFieldName = "youremail";
	} 
	
	
	if(trim(document.contactform.findus.value)=="")
	{
	   sErrStr +="How did you find us?\n";
		if(sFieldName == "")
		sFieldName="findus";

	}
	if (sErrStr != "")
	{
		alert("Please Enter Following Fields: \n\n"+sErrStr);
		for (i=0;i<document.contactform.elements.length;i++)
		{
			if (document.contactform.elements[i].name == sFieldName)
			document.contactform.elements[i].focus();

		}
	       return false;
	}
return true;
}