var uploading = false;
function checkUpload(){
	allowed=[];allowed=['bmp','jpg','jpeg','png','gif','psd','txt'];
	if(!document.getElementById("file").value==""){
		ext = document.getElementById("file").value.split('.')[document.getElementById("file").value.split('.').length-1];
		ext = ext.toLowerCase();
		if(!allowed.join().match(ext)){
			alert('Invalid file type!');
		}else{
			document.form1.submit();
			uploading = true;
		}
	}else {
		alert('Please choose the file you desire to upload.');
	}
}

function mycolor(x){
	var ex = new Date();
	ex.setDate(ex.getDate()+2000);
	document.cookie = "Color="+x+";expires="+ex.toGMTString();
	if(uploading==true){
		con = confirm("This action will cancel the upload!\nAre you sure you want to continue?");
		if(con==true){
			window.location = top.location.href;
		}
	}else{
		window.location = top.location.href;
	}
}