document.write('<link rel="stylesheet" type="text/css" href="css/radio_button.css" media="screen" />');

var Input = {
	initialize: function() {
	//initialize radio button functions
		var divs = document.getElementsByTagName("div");
		var div_scrollable;
		var div_scroll_border_inner;
		var div_width_setter;
		for(var i = 0; i < divs.length; i++) {
			if( divs[i].className.match("radio") ) {
				divs[i].onmouseover = Input.rb_on_mouse_over;
				divs[i].onmouseout = Input.rb_on_mouse_out;
				divs[i].onmouseup = Input.rb_on_mouse_up;
				divs[i].onmousedown = Input.rb_on_mouse_down;
			} else if(divs[i].className.match("scrollable") ) {
				div_scrollable=divs[i];
			} else if(divs[i].className.match("scroll_border_inner") ) {
				div_scroll_border_inner=divs[i];
			} else if(divs[i].className.match("width_setter") ) {
				div_width_setter=divs[i];	
			}
		}
	//initialize scrollbar functions
		if((document.title == 'Song Browse')||(document.title == 'CD Browse')) {
			var strOS = navigator.appVersion;
			//firefox:   5.0(windows;en-us)
			//firefox:  5.0(macintosh;en-us)
			//safari:    5.0(macinstosh <snip> safari
			//IE6:   4.0(compatible; msie 6.0; windows nt 5.0)
			//IE7:   4.0(compatible; msie 7.0; windows nt 5.0)
			var the_system="";
			if(strOS.toLowerCase().indexOf('win') != -1) { 
				the_system="win";
			} else if(strOS.toLowerCase().indexOf('mac') != -1) {
				the_system="mac";
			}
			if(strOS.toLowerCase().indexOf('safari') != -1) {
				the_system=the_system+"_safari";
			} else if(strOS.toLowerCase().indexOf('msie 6') != -1) {
				the_system=the_system+"_ie_6";
			} else if(strOS.toLowerCase().indexOf('msie 7') != -1) {
				the_system=the_system+"_ie_7";
			} else {
				the_system=the_system+"_firefox";
			}
 			var scroll_height=div_scroll_border_inner.offsetHeight;
 			var scroll_height_hash;
			if(document.title=='CD Browse') {  
	 			scroll_height_hash = {'win_firefox':768, 'win_ie_6':771, 'win_ie_7':771, 'mac_firefox':771, 'mac_safari':770};
			} else if(document.title=='Song Browse') {
	 			scroll_height_hash = {'win_firefox':726, 'win_ie_6':721, 'win_ie_7':732, 'mac_firefox':735, 'mac_safari':734};
			}
			if(scroll_height>scroll_height_hash[the_system]) {
				div_scrollable.style.height=scroll_height_hash[the_system]+"px";
				if(document.title=='CD Browse') {
					var width_setter_hash = {'win_firefox':558, 'win_ie_6':558, 'win_ie_7':558, 'mac_firefox':560, 'mac_safari':560};
					div_width_setter.style.width = width_setter_hash[the_system]+"px";
				}
			} else {
				div_scrollable.style.height = scroll_height+'px';
				if(document.title=='CD Browse') {
					div_width_setter.style.width = "578px";
				}
				div_scroll_border_inner.style.borderRight="none";
				if(document.title=='Song Browse') {
					var all_rows=document.getElementById('scroll_table').rows;
					for(i = 0; i < all_rows.length; i++){ 
						var its_cells=all_rows[i].cells;
						its_cells[2].className='songtitle_no_scroll';
						its_cells[3].className='artistname_no_scroll';
						its_cells[4].className='albumname_no_scroll';
						its_cells[5].className='genrename_no_scroll';
					}
				}	
			}
		}	
	},
	
	
	rb_on_mouse_over: function() {
		if(this.className == "radio") {  //unselected
			this.style.backgroundPosition = "7px -22px";
		} else {  //selected
			this.style.backgroundPosition = "7px -46px";
		}
	},
	
	rb_on_mouse_out: function() {
		if(this.className == "radio") {
			this.style.backgroundPosition = "7px 3px";
		} else {
			this.style.backgroundPosition = "7px -72px";
		}
	},

	rb_on_mouse_up: function() {
		selector = this.getElementsByTagName("input")[0];
		if(selector.value == "artist_song") {	
			window.location = 'song_browse.php';
		} else if(selector.value == 'products') {
			window.location = 'cd_browse.php?show=Show_All';
		} else if(selector.value == 'news') {
			window.location = 'news.php';
		} else if(selector.value == 'press') {
			window.location = 'press.php';
		}	
	},
	
	rb_on_mouse_down: function() {
		this.style.backgroundPosition = "7px -46px";
	}  
}

window.onload = Input.initialize;