function checkParams(){
	var username=document.contactusform.username.value;
	var email=document.contactusform.email.value;
	var contactno=document.contactusform.contactno.value;
	var comments=document.contactusform.comments.value;
	var agentEmail = document.contactusform.agentemail;	
	var statusSelectedIndex = agentEmail.selectedIndex;
	var agentEmailText = agentEmail.options[statusSelectedIndex].text;
	
	if(username==""){
		alert("Please enter your name");
		document.contactusform.username.focus();
		return false;
	}
	else if(email=="" || !emailValidation(email)){
		alert("Please enter valid email");
		//document.contactusform.email.value="";
		document.contactusform.email.focus();		
		return false;
	}
	else if (checkInternationalPhone(contactno)==false){
		alert("Please enter a valid phone number");
		//document.contactusform.contactno.value="";
		document.contactusform.contactno.focus();
		return false;
	}
	else if(comments=="" || comments=="Enter Comments..."){
		alert("Please put some comments");
		document.contactusform.comments.focus();
		return false;
	}
	else{
		document.contactusform.prpoff.value = agentEmailText;
		return true;
	}
}

function doClear(){
	if(document.contactusform.comments.value=='Enter Comments...')
		document.contactusform.comments.value="";
}

function emailValidation(email){
	var regexp=/^[a-zA-Z][A-Za-z0-9|_]*((\.)[a-zA-Z0-9|_]+)*@([0-9]*[a-zA-Z][0-9]*)+((\.)([0-9]*[a-zA-Z][0-9]*)+)+$/;
	if(email.search(regexp)==-1){
		return false;
	}else{ 
		return true;
	}
}

/**
 * DHTML phone number validation script, Anish Sneh
 */

// Declaring required variables
var digits = "0123456789";
// non-digit characters which are allowed in phone numbers
var phoneNumberDelimiters = "()- ";
// characters which are allowed in international phone numbers
// (a leading + is OK)
var validWorldPhoneChars = phoneNumberDelimiters + "+";
// Minimum no of digits in an international phone no.
var minDigitsInIPhoneNumber = 10;

function isInteger(s)
{   var i;
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}
function trim(s)
{   var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not a whitespace, append to returnString.
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (c != " ") returnString += c;
    }
    return returnString;
}
function stripCharsInBag(s, bag)
{   var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function checkInternationalPhone(strPhone){
	var bracket=3;
	strPhone=trim(strPhone);
	if(strPhone.indexOf("+")>1) 
		return false;
	if(strPhone.indexOf("-")!=-1)
		bracket=bracket+1;
	if(strPhone.indexOf("(")!=-1 && strPhone.indexOf("(")>bracket)
		return false;
	var brchr=strPhone.indexOf("(");
	if(strPhone.indexOf("(")!=-1 && strPhone.charAt(brchr+2)!=")")
		return false;
	if(strPhone.indexOf("(")==-1 && strPhone.indexOf(")")!=-1)
		return false;
	s=stripCharsInBag(strPhone,validWorldPhoneChars);
	return (isInteger(s) && s.length >= minDigitsInIPhoneNumber);
}