function validateContactUsForm(form){
	var alertMsg = "Please enter data for the following missing fields:\n\n"
	
	//if(form.industry.value==""){
	//	alertMsg = alertMsg + "  Your Company'sIndustry: \n"
	//}

	if(form.first_name.value==""){
		alertMsg = alertMsg + "  First Name: \n"
	}
	
	if(form.last_name.value==""){
		alertMsg = alertMsg + "  Last Name: \n"
	}
	
	if(form.Phone1.value==""){
		alertMsg = alertMsg + "  Phone: \n"
	}	
	
	//valifdate email address
	var emailID=form.email
	
	if ((emailID.value==null)||(emailID.value=="")){
		alert("Please Enter your Email Address")
		emailID.focus()
		return false
	}
	
	if (echeck(emailID.value)==false){
		emailID.value=""
		emailID.focus()
		return false
	}
	
	if (alertMsg == "Please enter data for the following missing fields:\n\n"){
		return true;
	} 	
	else {
		alert(alertMsg);
		return false;
	}
}

/* ///////////////////////////////////////////// */

//validate email address.

function echeck(str) {

	var at="@"
	var dot="."
	var lat=str.indexOf(at)
	var lstr=str.length
	var ldot=str.indexOf(dot)
	if (str.indexOf(at)==-1){
		alert("Invalid E-mail Address")
		return false
	}

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		alert("Invalid E-mail Address")
		return false
	}

	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		alert("Invalid E-mail Address")
		return false
	}

		if (str.indexOf(at,(lat+1))!=-1){
		alert("Invalid E-mail Address")
		return false
		}

		if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		alert("Invalid E-mail Address")
		return false
		}

		if (str.indexOf(dot,(lat+2))==-1){
		alert("Invalid E-mail Address")
		return false
		}
	
		if (str.indexOf(" ")!=-1){
		alert("Invalid E-mail Address")
		return false
		}

 		return true					
}

/* ///////////////////////////////////////////// */