// accumulate values to put into text area
var accumulated_output_info;

// add a labeled value to the text area
function accumulate_output( str )
{
   accumulated_output_info = accumulated_output_info + str + "\n";
}

// convert a 32-bit value to a 8-char hex string
function cvt_hex( val )
{
   var str="";
   var i;
   var v;

   for( i=7; i>=0; i-- )
   {
      v = (val>>>(i*4))&0x0f;
      str += v.toString(16);
   }
   return str;
}

// add a bit string to the output, inserting spaces as designated
function accumulate_val( label, val )
{
   accumulated_output_info += label + cvt_hex(val) + "\n";
}

// return a hex value LSB first
function lsb_hex( val )
{
   var str="";
   var i;
   var vh;
   var vl;

   for( i=0; i<=6; i+=2 )
   {
      vh = (val>>>(i*4+4))&0x0f;
      vl = (val>>>(i*4))&0x0f;
      str += vh.toString(16) + vl.toString(16);
   }
   return str;
}

// rotate left circular
function rotate_left( n, s )
{
   var t4 = ( n<<s ) | (n>>>(32-s));
//   accumulate_output( "  "+cvt_hex(n)+"<<<"+s+"="+cvt_hex(t4) );
   return t4;
}

// calculate the hash
function do_sha1()
{
   var blockstart;			// which block of words from the dataare we using now?
   var i, j;
   var W = new Array(80);
   // initial constants
   var H0 = 0x67452301;
   var H1 = 0xEFCDAB89;
   var H2 = 0x98BADCFE;
   var H3 = 0x10325476;
   var H4 = 0xC3D2E1F0;
   // working variables
   var A, B, C, D, E;
   var temp;

   // initialize detail output string
   accumulated_output_info="";

   // get message to hash
   var msg = document.datoscompra.inmsg.value;
//alert(msg);

   // note current length
   var msg_len = msg.length;

   // convert to a 32-bit word array
   var word_array = new Array();
   for( i=0; i<msg_len-3; i+=4 )
   {
      // convert 4 bytes to a word
      j = msg.charCodeAt(i)<<24 | msg.charCodeAt(i+1)<<16 |
		msg.charCodeAt(i+2)<<8 | msg.charCodeAt(i+3);
      word_array.push( j );
      accumulate_val( msg.substr(i, 4)+": ", j );
   }

   // handle final bits, add beginning of padding: 1 bit, then 0 bits
   switch( msg_len % 4 )
   {
      case 0:
         // text length was a multiple of 4 bytes, start padding
         i = 0x080000000;				// 4 bytes padding
         break;

      case 1:
         // one byte of text left
         i = msg.charCodeAt(msg_len-1)<<24 | 0x0800000;	// 3 bytes padding
         break;

      case 2:
         // two bytes of text left
         i = msg.charCodeAt(msg_len-2)<<24 | msg.charCodeAt(msg_len-1)<<16
		| 0x08000;				// 2 bytes padding
         break;

      case 3:
         // three bytes of text left
         i = msg.charCodeAt(msg_len-3)<<24 | msg.charCodeAt(msg_len-2)<<16
		| msg.charCodeAt(msg_len-1)<<8	| 0x80;	// 1 byte padding
         break;

      default:
         window.alert("Something went weird in the switch!")
         return;
   }
   accumulate_output( "length="+msg_len );
   accumulate_val( "length%4="+(msg_len%4)+", padding=", i );

   // handle the end of the text and beginning of the padding
   word_array.push( i );

   // pad to 448 bits (mod 512 bits) = 14 words (mod 16 words)
   while( (word_array.length % 16) != 14 )
      word_array.push( 0 );

   // add 64-bit message length (in bits)
   word_array.push( msg_len>>>29 );
   word_array.push( (msg_len<<3)&0x0ffffffff );

   for( i=0; i<word_array.length; i++ )
      accumulate_output( "msg[" + i + "]=" + cvt_hex( word_array[i] ) );  

   // Process each 16-word block.
   for ( blockstart=0; blockstart<word_array.length; blockstart+=16 )
   {
      accumulate_output( "Starting block at word "+blockstart );

      // create entries in W array
      for( i=0; i<16; i++ )
         W[i] = word_array[blockstart+i];
      for( i=16; i<=79; i++ )
         W[i] = rotate_left(W[i-3] ^ W[i-8] ^ W[i-14] ^ W[i-16], 1);
      for( i=0; i<=79; i++ )
         accumulate_output( "W[" + i + "]=" + cvt_hex( W[i] ) );  

      // copy state
      A = H0;
      B = H1;
      C = H2;
      D = H3;
      E = H4;

      // note start of round values
      accumulate_output("A=" + cvt_hex(A) + " B=" + cvt_hex(B) + " C=" + cvt_hex(C)
		+ " D=" + cvt_hex(D) + " E=" + cvt_hex(E) );

      // update state variables
      for( i= 0; i<=19; i++ )
      {
         temp = (rotate_left(A,5) + ((B&C) | (~B&D)) + E + W[i] + 0x5A827999) & 0x0ffffffff;

         // update state
         E = D;
         D = C;
         C = rotate_left(B,30);
         B = A;
         A = temp;
         accumulate_output( "i="+i+" A=" + cvt_hex(A) + " B=" + cvt_hex(B) + " C=" + cvt_hex(C)
		+ " D=" + cvt_hex(D) + " E=" + cvt_hex(E) );
      }

      for( i=20; i<=39; i++ )
      {
         temp = (rotate_left(A,5) + (B ^ C ^ D) + E + W[i] + 0x6ED9EBA1) & 0x0ffffffff;

         // update state
         E = D;
         D = C;
         C = rotate_left(B,30);
         B = A;
         A = temp;
         accumulate_output( "i="+i+" A=" + cvt_hex(A) + " B=" + cvt_hex(B) + " C=" + cvt_hex(C)
		+ " D=" + cvt_hex(D) + " E=" + cvt_hex(E) );
      }

      for( i=40; i<=59; i++ )
      {
         temp = (rotate_left(A,5) + ((B&C) | (B&D) | (C&D)) + E + W[i] + 0x8F1BBCDC) & 0x0ffffffff;

         // update state
         E = D;
         D = C;
         C = rotate_left(B,30);
         B = A;
         A = temp;
         accumulate_output( "i="+i+" A=" + cvt_hex(A) + " B=" + cvt_hex(B) + " C=" + cvt_hex(C)
		+ " D=" + cvt_hex(D) + " E=" + cvt_hex(E) );
      }

      for( i=60; i<=79; i++ )
      {
        temp = (rotate_left(A,5) + (B ^ C ^ D) + E + W[i] + 0x6CA62C1D6) & 0x0ffffffff;

         // update state
         E = D;
         D = C;
         C = rotate_left(B,30);
         B = A;
         A = temp;
         accumulate_output( "i="+i+" A=" + cvt_hex(A) + " B=" + cvt_hex(B) + " C=" + cvt_hex(C)
		+ " D=" + cvt_hex(D) + " E=" + cvt_hex(E) );
      }

      H0 = (H0 + A) & 0x0ffffffff;
      H1 = (H1 + B) & 0x0ffffffff;
      H2 = (H2 + C) & 0x0ffffffff;
      H3 = (H3 + D) & 0x0ffffffff;
      H4 = (H4 + E) & 0x0ffffffff;

      accumulate_output( "H0=" + cvt_hex(H0) + " H1=" + cvt_hex(H1) + " H2=" + cvt_hex(H2)
		+ " H3=" + cvt_hex(H3) + " H4=" + cvt_hex(H4) );
   } // of loop on i

   // process output
   document.datoscompra.Ds_Merchant_MerchantSignature.value = cvt_hex(H0) + cvt_hex(H1) + cvt_hex(H2)
		+ cvt_hex(H3) + cvt_hex(H4);
   //document.stuff.details.value = accumulated_output_info;
}



function toggleEspecificaciones() {
	$("div#especificaciones").toggle();
}
function toggleCesta() {
	$("div#cuenta").toggle();
}
$(document).ready(function (){
	
	function changeTitle(title) { document.title = title; }
	var titulo = '';
	var precioMinimo = '';
	if($("form#datosTitle input#precioMin").val()) {
	precioMinimo = $("form#datosTitle input#precioMin").val();
	var brand = $("form#datosTitle input#brand").val();
	var model = $("form#datosTitle input#model").val();
	if(brand!=''){
		if(model){
			//titulo = "Cartuchos y toners baratos para impresoras más vendidas de " + brand + " " + model + " desde " + precioMinimo + "€ - multipapel.com sólo consumibles originales.";
			titulo = "Consumibles " + brand + " " + model + " desde " + precioMinimo + "€ - multipapel.com, cartuchos y toners originales al mejor precio.";
		}
		else {
			titulo = "Cartuchos y toners baratos para impresoras más vendidas de " + brand + " desde " + precioMinimo + "€ - multipapel.com sólo consumibles originales.";
		}
	}
		//alert(precioMinimo);
		changeTitle(titulo)
	}
	
    $("form#consumibles").submit(function() {
      if ($("select#marca").val() == "") {
		$(".submit span").text("Seleccione Marca").show().fadeOut(1000);
		return false;
      }
	  
      if ($("input#filtroModelo").val() == "") {
		$(".submit span").text("Introduzca Modelo").show().fadeOut(1000);
		return false;
      }
	  
      if ($("select#modelo").val() == "") {
      $(".submit span").text("Seleccione Modelo").show().fadeOut(1000);
      return false;
      }
        $(".submit span").text("Espere unos segundos, estamos buscando sus consumibles...").show();
        return true;
    });
    $("div.toggle p").click(function() {
		//$("div.toggle div.paso_form").css("display","none");
		$(this).parent().find("div.paso_form").toggle("slow");
	});

    });