if (window.addEventListener)
	window.addEventListener("load", init_prise, false);
else if (window.attachEvent)
	window.attachEvent("onload", init_prise);
	
	
function init_prise()
{
	var form_conteiner=document.getElementById('my_form');
	var last_inp=false;
	if(form_conteiner)
	{
		var my_inputs=form_conteiner.getElementsByTagName('input');
		for(i=0;i<my_inputs.length;i++)
		{
			if(my_inputs[i].type=="checkbox")
			{
				var my_parent=my_inputs[i].parentNode;
				if(my_parent.className.indexOf('checkbox')>=0)
				{
					var my_prise=parseFloat(my_parent.getElementsByTagName('label')[0].innerHTML.split(' ')[0].replace('\$',''));
					my_inputs[i].prise=my_prise;
					my_inputs[i].onclick=function()
					{
						var span_res=document.getElementById('resalts');
						var global_prise=0;
						var arr_input=this.form.getElementsByTagName('input');
						for(i=0;i<arr_input.length;i++)
						{
							if(parseFloat(arr_input[i].prise)&&arr_input[i].checked)
							{
								global_prise+=parseFloat(arr_input[i].prise);
							}
						}
						span_res.innerHTML='$'+global_prise;						
					}
					last_inp=my_inputs[i]
				}
			}
		}
		if(last_inp)
		{
			last_inp.onclick();			
		}
	}
}