var int_id_array = new Object();
var default_width = 157;
var max_width = 177;
var dw = 4;

function Init() {
	if (navigator.appName == "Microsoft Internet Explorer") {
		dw = 10;
	}
	//if (browser == "Netscape")

	int_id_array.btn1_int = null;
	int_id_array.btn2_int = null;
	int_id_array.btn3_int = null;
	int_id_array.btn4_int = null;
	int_id_array.btn5_int = null;
	int_id_array.btn1_flag = false;
	int_id_array.btn2_flag = false;
	int_id_array.btn3_flag = false;
	int_id_array.btn4_flag = false;
	int_id_array.btn5_flag = false;
}

function StartScaleUp(pointer) {
	if( int_id_array[pointer.id+"_int"]==null ) {
		int_id_array[pointer.id+"_flag"] = true;
		pointer.src = "/styles/"+pointer.id+"_big.png";
		int_id_array[pointer.id+"_int"] = setInterval(ScaleUp,1);
	}
}

function StartScaleDown(pointer) {
	if( int_id_array[pointer.id+"_int"]!=null ) {
		clearInterval(int_id_array[pointer.id+"_int"]);
	}
	int_id_array[pointer.id+"_flag"] = false;
	int_id_array[pointer.id+"_int"] = setInterval(ScaleDown,1);
}

function ScaleUp(){
	for(var i=1; i<6; i++) {
		if( int_id_array["btn"+i+"_flag"] ) {
			var component = document.getElementById("btn"+i); 
			if(component.width > max_width-1){
				component.width = 177;
				clearInterval(int_id_array[component.id+"_int"]);
				int_id_array[component.id+"_int"] = null;
				int_id_array[component.id+"_flag"] = false; 
			} else {
				component.width+=dw;
			}
		}
	}
}

function ScaleDown(){
	for(var i=1; i<6; i++) {
		if( !int_id_array["btn"+i+"_flag"] && int_id_array["btn"+i+"_int"]!=null ) {
			var component = document.getElementById("btn"+i); 
			if(component.width < default_width+1){
				component.width = 157;
				clearInterval(int_id_array[component.id+"_int"]);
				int_id_array[component.id+"_int"] = null;
				int_id_array[component.id+"_flag"] = false;
				component.src = "/styles/"+"btn"+i+".png"; 
			} else {
				component.width-=dw;
			}
		}
	}
}