// JavaScript Document

img_src = Array(
"/images/button_login.png",
"/images/button_login_hover.png",
"/images/button_login_click.png",

"/images/button_see_all.png",
"/images/button_see_all_hover.png",

"/images/button_signup.png",
"/images/button_signup_hover.png",
"/images/button_signup_click.png",

"/images/button_pdf_download.png",
"/images/button_pdf_download_hover.png",

"/images/button_edit_course.png",
"/images/button_edit_course_hover.png",
"/images/button_edit_course_click.png",

"/images/button_pay.png",
"/images/button_pay_hover.png",
"/images/button_pay_click.png",

"/images/button_send.png",
"/images/button_send_hover.png",
"/images/button_send_click.png",

"/images/button_download_document.png",
"/images/button_download_document.png",
"/images/button_download_document.png",

"/images/button_apply.png",
"/images/button_apply_hover.png",
"/images/button_apply_click.png",

"/images/button_pdf_download_light.png",
"/images/button_pdf_download_light_hover.png",
"/images/button_pdf_download_light_click.png"
);
 
img_array = new Array();
 
for (counter in img_src) {
    img_array[counter] = new Image();
    img_array[counter].src = img_src[counter];
}

function del_contents(ele, text){
	if (ele.value == text){
		ele.value = "";
	}
}

function add_contents(ele, text){
	if (ele.value == ""){
		ele.value = text;
	}
}