this.imagePreview = function(){
        xOffset = 10;
        yOffset = 30;
    $("span.preview").hover(function(e){
        this.t = this.title;
        this.title = "";
        var c = "";
        $("body").append("<p id='preview'><img src='"+ this.t +"' alt='Image preview' />");
        $("#preview")
            .css("top",(e.pageY - xOffset) + "px")
            .css("left",(e.pageX + yOffset) + "px")
            .fadeIn("fast");
    },
    function(){
        this.title = this.t;
        $("#preview").remove();
    });
    $("span.preview").mousemove(function(e){
        $("#preview")
            .css("top",(e.pageY - xOffset) + "px")
            .css("left",(e.pageX + yOffset) + "px");
    });
};
// starting the script on page load
$(document).ready(function(){
    imagePreview();
});