var char = 0;
var caption = "";
var standby;
var target; 
function showCaption(obj,text) {
    caption = text;//obj.attr('title');
	target = obj;
	target.html("_");
	char = 0;
    if(caption)
        type();
}

function hideCaption(obj) {
    caption = "";
    char = 0;
    obj.html("");
}

function type(  ) {
    target.html(caption.substr(0, char++));
    if(char <= caption.length+1){
        setTimeout('type()', 70);
		
    }else {
        //char = 0;
        //caption = "";
    }
}