/*navbar*/
var navbtnover=""
var navbtntab=""
var navbtnimg=""

function nav_roll_over(base,aa){
	if (base!=navbtnover){
		var obj=document.getElementById(base);
		obj.src=aa;
	}
}

function nav_roll_out(base,aa){
	if (base!=navbtnover){
		var obj=document.getElementById(base);
		obj.src=aa;
	}
}

function nav_change_img(base,aa){
	navbtnover=base;
	var obj=document.getElementById(base);
	obj.src=aa;
	navbtntab=base;
	navbtnimg=aa;
}


/*textnavbar*/

function text_nav_class(base,aa){
	var obj=document.getElementById(base);
	obj.className=aa;
}


function checkpage(){
		var tempURL=new String(document.URL)
		var load_first_string=tempURL.split("?")
		//Return a array
		var alertfirst=load_first_string[1];
		var alertsecond=load_first_string[2];
				
		switch (alertfirst){
			case "home": 
				navbtnimg="images/home_d.gif";
				break;
			case "aboutus": 
				navbtnimg="images/aboutus_c.gif";
				break;
			default: 
				break
		}		
}

/*Register, email frend and mark calendar*/

function imgoverme(base,aa){
		var objimg=document.getElementById(base);
		objimg.src=aa;
}

function imgoutme(base,aa){
		var objimg=document.getElementById(base);
		objimg.src=aa;
}


/*tabchange*/
function tabnav_press(base,aa){
		var objfact=document.getElementById('fact');
		var objvideo=document.getElementById('video');
		var objphoto=document.getElementById('photos');
		if (base=='fact'){
			objfact.src="images/facttab_1.gif"
			objvideo.src="images/facttab_2.gif"
			objphoto.src="images/facttab_3.gif"
		}
		if (base=='video'){
			objfact.src="images/videotab_3.gif"
			objvideo.src="images/videotab_1.gif"
			objphoto.src="images/videotab_2.gif"
		}
		if (base=='photos'){
			objfact.src="images/phototab_2.gif"
			objvideo.src="images/phototab_3.gif"
			objphoto.src="images/phototab_1.gif"
		}
		
}