function checkData(){
                                if (document.application.lastname.value == "") {
                                        alert("Please fill in your Last Name.")
                                        document.application.lastname.focus()
                                        return false;}
                                if (document.application.firstname.value == "") {
					alert("Please fill in your First name.")
                                        document.application.firstname.focus()
                                        return false;}        
                      		if (document.application.birthmm.value == "") {
                                        alert("Please fill in your Birth month.")
                                        document.application.birthmm.focus()
                                        return false;}
             			if(isNaN(document.application.birthmm.value)) { 
                                       alert("Please enter a valid birthmonth.") 
                                       document.application.birthmm.focus() 
                                       return false;}  
                                if (document.application.birthdd.value == "") {
                                        alert("Please fill in your Birth date.")
                                        document.application.birthdd.focus()
                                        return false;}
             			if(isNaN(document.application.birthdd.value)) { 
                                       alert("Please enter a valid birth date.") 
                                       document.application.birthdd.focus() 
                                       return false;} 
                                if (document.application.birthyy.value == "") {
                                        alert("Please fill in your Birth year.")
                                        document.application.birthyy.focus()
                                        return false;}
             			if(isNaN(document.application.birthyy.value)) { 
                                       alert("Please enter a valid birth year.") 
                                       document.application.birthyy.focus() 
                                       return false;}  
                                if (document.application.race.value == "") {
                                        alert("Please fill in race.")
                                        document.application.race.focus()
                                        return false;}
                                if (document.application.address1.value == "") {
                                        alert("Please fill in your Address.")
                                        document.application.address1.focus()
                                        return false;}
                                if (document.application.city.value == "") {
                                        alert("Please fill in your City.")
                                        document.application.city.focus()
                                        return false;}
                                if (document.application.state.value == "") {
                                        alert("Please fill in your State.")
                                        document.application.state.focus()
                                        return false;}
                                if (document.application.zipcode.value == "") {
                                        alert("Please fill in your Zip Code.")
                                        document.application.zipcode.focus()
                                        return false;}
                                if (document.application.phoneareacode.value == "") {
                                        alert("Please fill in Phone Area Code.")
                                        document.application.phoneareacode.focus()
                                        return false;}
             			if(isNaN(document.application.phoneareacode.value)) { 
                                       alert("Please enter a valid Phone Area Code in this field.") 
                                       document.application.phoneareacode.focus() 
                                       return false;} 
                                if (document.application.phoneprefix.value == "") {
                                        alert("Please fill in your Phone Prefix.")
                                        document.application.phoneprefix.focus()
                                        return false;}
             			if(isNaN(document.application.phoneprefix.value)) { 
                                       alert("Please enter a valid Phone Prefix in this field.") 
                                       document.application.phoneprefix.focus() 
                                       return false;} 
                                if (document.application.phonenumber.value == "") {
                                        alert("Please fill in your Phone Number.")
                                        document.application.phonenumber.focus()
                                        return false;}
             			if(isNaN(document.application.phonenumber.value)) { 
                                       alert("Please enter a valid Phone number in this field.") 
                                       document.application.phonenumber.focus() 
                                       return false;} 
                                if (document.application.email.value.indexOf("@")<3){
					alert("I'm sorry. This email address seems wrong. Please"
					+" check the email address or include the '@' sign.");
					return false;}
                                if (document.application.gpa.value == "") {
                                        alert("Please fill in your Grade Point Average (GPA).")
                                        document.application.gpa.focus()
                                        return false;}
                                if (document.application.gpa_senior.value == "") {
                                        alert("Please fill in your Grade Point Average (GPA) - Senior Year.")
                                        document.application.gpa_senior.focus()
                                        return false;}
                                if (document.application.gre_q.value == "") {
                                        alert("Please fill in GRE Quantitative Score.")
                                        document.application.gre_q.focus()
                                        return false;}
                                if (document.application.gre_a.value == "") {
                                        alert("Please fill in GRE Analytical Score.")
                                        document.application.gre_a.focus()
                                        return false;}
                                if (document.application.gre_v.value == "") {
                                        alert("Please fill in GRE Verbal Score.")
                                        document.application.gre_v.focus()
                                        return false;}
                                if (document.application.gre_date.value == "") {
                                        alert("Please fill in Date on which GRE was taken.")
                                        document.application.gre_date.focus()
                                        return false;}
                                if (document.application.toefl.value == "") {
                                        alert("Please fill in your Toefl Score.")
                                        document.application.toefl.focus()
                                        return false;}
                                if (document.application.toefl_date.value == "") {
                                        alert("Please fill in Date on which Toefl was taken.")
                                        document.application.toefl_date.focus()
                                        return false;}	
					return true;
					}