function validate() {
		
	  form = document.form1;
  
			  if(form.name){
					if(form.name.value == ''){
					  alert('Please enter your name');
					  return false;
				}
			  }	
			  
			  
			  
			  if(form.website){
					if(form.age.value == ''){
					  alert('Please enter your website');
					  return false;
				}
			  }	
			  
			  
			  if(form.email){
				  
					if(form.email.value == ''){
					  alert('Please enter your email');
					  return false;
					}
					
					
					patron = /^([0-9a-zA-Z_-]\.*)+@[0-9a-zA-Z]+\.[0-9a-zA-Z]{2,3}$/;
					
						if ( form.email.value.search(patron) == -1 ) {
						  alert('Please enter a valid email address');
						  return false;					  
						}			
				
				
			  }	  			  			  	  
			  

			  
		  
}