// JavaScript Document

function checkBoxes(boxes) {
		var boxCount = boxes.length;
		var checkCount = 0
		for(i=0; i < boxCount; i++){
			if(boxes[i].checked){
				checkCount++;
				}
			}
		 return checkCount;
       }

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 format")
		   return false
		}

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

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

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

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

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

 		 return true					
	}

function ValidateForm(){

	
	var emailID=document.form1.email_address;
		
		if(checkBoxes(document.form1.course) <= 0){
			alert("Please select a course");
			return false;
		}

		if(checkBoxes(document.form1.school_pref) <= 0){
			alert("Please select a school");
			return false;
		}
		
		if(document.form1.student_name.value == ""){
			alert("Please enter your name");
			return false;
		}
		
		if(document.form1.city.value == ""){
			alert("Please enter your city");
			return false;
		}
		
		if(document.form1.state.value == ""){
			alert("Please enter your state");
			return false;
		}
		
		if(document.form1.phone_number.value == ""){
			alert("Please enter your cell phone number");
			return false;
		}
		
	
	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;
	}

	return true
 }