/*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

		}		

}



//document.onload=checkpage()