// THEroll.js

/* Calculate Buttons */
but_cal1on = new Image();    
but_cal1on.src = "images/0000_but_cal_on.gif"; 
but_cal1off = new Image();      
but_cal1off.src = "images/0000_but_cal_off.gif"; 

but_cal2on = new Image();    
but_cal2on.src = "images/0000_but_cal_on.gif"; 
but_cal2off = new Image();      
but_cal2off.src = "images/0000_but_cal_off.gif"; 

but_cal3on = new Image();    
but_cal3on.src = "images/0000_but_cal_on.gif"; 
but_cal3off = new Image();      
but_cal3off.src = "images/0000_but_cal_off.gif"; 

but_cal4on = new Image();    
but_cal4on.src = "images/0000_but_cal_on.gif"; 
but_cal4off = new Image();      
but_cal4off.src = "images/0000_but_cal_off.gif"; 

but_cal5on = new Image();    
but_cal5on.src = "images/0000_but_cal_on.gif"; 
but_cal5off = new Image();      
but_cal5off.src = "images/0000_but_cal_off.gif"; 

but_amoon = new Image();    
but_amoon.src = "images/0000_but_amo_on.gif"; 
but_amooff = new Image();      
but_amooff.src = "images/0000_but_amo_off.gif"; 

but_sumon = new Image();    
but_sumon.src = "images/0000_but_sum_on.gif"; 
but_sumoff = new Image();      
but_sumoff.src = "images/0000_but_sum_off.gif"; 


/* Functionality */
browser_version = parseFloat(navigator.appVersion); 

if (browser_version >= 3.0){
	THE = 'true';
} else{
	THE = 'false';
}

function THEon(imgName){
	if(THE == 'true'){
		imgOn = eval(imgName + "on.src");
		document[imgName].src = imgOn;
	}
}

function THEoff(imgName) {
	if(THE == 'true'){
		imgOff = eval(imgName + "off.src");
		document[imgName].src = imgOff;
	}
}

function THEalloff(){
	THEoff('pri_buy');
	THEoff('pri_pre');
	THEoff('pri_div');
}