// JavaScript Document


// hides & shows the upload box
var track_box = "hidden";
 
function show_upload_box(){
	if(track_box == "hidden"){
		  document.getElementById('upload_form').style.display='';
		  document.getElementById('upload_button').style.display='none';
		  track_box = "showing";
  	}else{
		  document.getElementById('upload_form').style.display='none';
		  document.getElementById('upload_button').style.display='';
		  track_box = "hidden";
  	}   
}




// checks the file type
function check_filetype(){


	if ( document.form1.photo.value.length < 3 ){
			window.alert("Please select a photo to upload.");
			return false;	


	}else if ( document.form1.photo.value.lastIndexOf(".jpg") == -1    &&  document.form1.photo.value.lastIndexOf(".JPG") == -1  &&  document.form1.photo.value.lastIndexOf(".jpeg") == -1   &&  document.form1.photo.value.lastIndexOf(".JPEG") == -1 &&  document.form1.photo.value.lastIndexOf(".pjpeg") == -1  &&  document.form1.photo.value.lastIndexOf(".PJPEG") == -1 )  {
	   window.alert("You can only upload .jpg file types.");
	   return false;
	   
	}else{
		//document.getElementById('upload_progress_box_1').style.display=''; 
		return true;
	}
}


// send the form
function send_form(){
	
	if (check_filetype() == true){
		document.form1.submit();
	}
}