function chkContactUs(){
	
	var strfullname;
	var email;
	var email2;
	var intstrcompanyname;
	var intstrsubject;
	var intstrmessage;
	
	strfullname = document.form.txt_fullname;
	//strfullname = document.getElementById("txt_fullname");
	email = document.form.txt_email;
	email2 = document.form.txt_email2;
	intstrcompanyname = document.form.txt_companyname;
	intstrsubject = document.form.txt_subject;
	intstrmessage = document.form.txt_message;
	
	var msgstrfullname;
	var msgemail;
	var msgemail2;
	var msgintstrcompanyname;
	var msgintstrsubject;
	var msgintstrmessage;
	
	msgstrfullname = msg_txt_fullname;
	//msgstrfullname = document.getElementById("msg_txt_fullname");
	msgemail = msg_txt_email;
	msgemail2 = msg_txt_email2;
	msgintstrcompanyname = msg_txt_companyname;
	msgintstrsubject = msg_txt_subject;
	msgintstrmessage = msg_txt_message;
	
	//////////////////////////////////////////////////////////////////////////
	if(strfullname.value == ""){
		
		msgstrfullname.innerText = "Required."
		strfullname.focus();
		return false;
	}else{
		var filter  = /^([a-zA-Z ])+$/;
		if (filter.test(strfullname.value)){
		}else{
			msgstrfullname.innerText = "Invalid Entry."
			strfullname.focus();
			return false;
		}
	}
	
	//////////////////////////////////////////////////////////////////////////
	if(email.value == ""){
			//alert('Please enter EMAIL');
			msgemail.innerText = "Required."
			email.focus();
			return false;
		}else{
			var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9])+$/;
			if (filter.test(email.value)){

			}else {
				//alert('Please enter a valid EMAIL address');
				msgemail.innerText = "Invalid Entry."
				email.focus();
				return false;
			}
		}
		
	//////////////////////////////////////////////////////////////////////////
	if(email2.value == ""){
			//alert('Please enter EMAIL');
			msgemail2.innerText = "Required."
			email2.focus();
			return false;
		}else{
			var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9])+$/;
			if (filter.test(email2.value)){

			}else {
				//alert('Please enter a valid EMAIL address');
				msgemail2.innerText = "Invalid Entry."
				email2.focus();
				return false;
			}
		}
	
	//////////////////////////////////////////////////////////////////////////
	if(email.value != email2.value){
		msgemail2.innerText = "Emails do not match."
		email2.focus();
		return false;
	}
	
	//////////////////////////////////////////////////////////////////////////
	if(intstrcompanyname.value == ""){
		msgintstrcompanyname.innerText = "Required."
		intstrcompanyname.focus();
		return false;
	}
	
	//////////////////////////////////////////////////////////////////////////
	if(intstrsubject.value == ""){
		msgintstrsubject.innerText = "Required."
		intstrsubject.focus();
		return false;
	}
		
	//////////////////////////////////////////////////////////////////////////
	if(intstrmessage.value == ""){
		msgintstrmessage.innerText = "Required."
		//intstrmessage.value = "Required."
		intstrmessage.focus();
		return false;
	}
}