95     		

    96     		/*

    97     		var url = this.url_proxy;

    98     		if(url.search(/\?/)<0){

    99     			url += "?";

   100     		}

   101     		url += "&" + this.parameter_name + "=" + this.lastSlide;

   102     		

   103     		IriSP.jQuery.ajax({

   104 				url: url,

   105 				success: function(xml) {

   106 					xml = IriSP.jQuery.parseXML(xml);

   107 					self.containerDiv.html(xml);

   108 				},

   109 				error: function(jqXHR, textStatus, errorThrown){

   110 					self.containerDiv.html("Error while downloading the slideshow. jqXHR = " + jqXHR + ", textStatus = " + textStatus + ", errorThrown = " + errorThrown);

   111 				}

   112     		});

   113     		

   114     		*/

   115     		

   116     		

   117     		

   156 

   157 

   158 // SHA1ise function

   159 IriSP.SlideShareWidget.prototype.sha1 = function(msg) {

   160 	 

   161 	function rotate_left(n,s) {

   162 		var t4 = ( n<<s ) | (n>>>(32-s));

   163 		return t4;

   164 	};

   165  

   166 	function lsb_hex(val) {

   167 		var str="";

   168 		var i;

   169 		var vh;

   170 		var vl;

   171  

   172 		for( i=0; i<=6; i+=2 ) {

   173 			vh = (val>>>(i*4+4))&0x0f;

   174 			vl = (val>>>(i*4))&0x0f;

   175 			str += vh.toString(16) + vl.toString(16);

   176 		}

   177 		return str;

   178 	};

   179  

   180 	function cvt_hex(val) {

   181 		var str="";

   182 		var i;

   183 		var v;

   184  

   185 		for( i=7; i>=0; i-- ) {

   186 			v = (val>>>(i*4))&0x0f;

   187 			str += v.toString(16);

   188 		}

   189 		return str;

   190 	};

   191  

   192  

   193 	function Utf8Encode(string) {

   194 		string = string.replace(/\r\n/g,"\n");

   195 		var utftext = "";

   196  

   197 		for (var n = 0; n < string.length; n++) {

   198  

   199 			var c = string.charCodeAt(n);

   200  

   201 			if (c < 128) {

   202 				utftext += String.fromCharCode(c);

   203 			}

   204 			else if((c > 127) && (c < 2048)) {

   205 				utftext += String.fromCharCode((c >> 6) | 192);

   206 				utftext += String.fromCharCode((c & 63) | 128);

   207 			}

   208 			else {

   209 				utftext += String.fromCharCode((c >> 12) | 224);

   210 				utftext += String.fromCharCode(((c >> 6) & 63) | 128);

   211 				utftext += String.fromCharCode((c & 63) | 128);

   212 			}

   213  

   214 		}

   215  

   216 		return utftext;

   217 	};

   218  

   219 	var blockstart;

   220 	var i, j;

   221 	var W = new Array(80);

   222 	var H0 = 0x67452301;

   223 	var H1 = 0xEFCDAB89;

   224 	var H2 = 0x98BADCFE;

   225 	var H3 = 0x10325476;

   226 	var H4 = 0xC3D2E1F0;

   227 	var A, B, C, D, E;

   228 	var temp;

   229  

   230 	msg = Utf8Encode(msg);

   231  

   232 	var msg_len = msg.length;

   233  

   234 	var word_array = new Array();

   235 	for( i=0; i<msg_len-3; i+=4 ) {

   236 		j = msg.charCodeAt(i)<<24 | msg.charCodeAt(i+1)<<16 |

   237 		msg.charCodeAt(i+2)<<8 | msg.charCodeAt(i+3);

   238 		word_array.push( j );

   239 	}

   240  

   241 	switch( msg_len % 4 ) {

   242 		case 0:

   243 			i = 0x080000000;

   244 		break;

   245 		case 1:

   246 			i = msg.charCodeAt(msg_len-1)<<24 | 0x0800000;

   247 		break;

   248  

   249 		case 2:

   250 			i = msg.charCodeAt(msg_len-2)<<24 | msg.charCodeAt(msg_len-1)<<16 | 0x08000;

   251 		break;

   252  

   253 		case 3:

   254 			i = msg.charCodeAt(msg_len-3)<<24 | msg.charCodeAt(msg_len-2)<<16 | msg.charCodeAt(msg_len-1)<<8	| 0x80;

   255 		break;

   256 	}

   257  

   258 	word_array.push( i );

   259  

   260 	while( (word_array.length % 16) != 14 ) word_array.push( 0 );

   261  

   262 	word_array.push( msg_len>>>29 );

   263 	word_array.push( (msg_len<<3)&0x0ffffffff );

   264  

   265  

   266 	for ( blockstart=0; blockstart<word_array.length; blockstart+=16 ) {

   267  

   268 		for( i=0; i<16; i++ ) W[i] = word_array[blockstart+i];

   269 		for( i=16; i<=79; i++ ) W[i] = rotate_left(W[i-3] ^ W[i-8] ^ W[i-14] ^ W[i-16], 1);

   270  

   271 		A = H0;

   272 		B = H1;

   273 		C = H2;

   274 		D = H3;

   275 		E = H4;

   276  

   277 		for( i= 0; i<=19; i++ ) {

   278 			temp = (rotate_left(A,5) + ((B&C) | (~B&D)) + E + W[i] + 0x5A827999) & 0x0ffffffff;

   279 			E = D;

   280 			D = C;

   281 			C = rotate_left(B,30);

   282 			B = A;

   283 			A = temp;

   284 		}

   285  

   286 		for( i=20; i<=39; i++ ) {

   287 			temp = (rotate_left(A,5) + (B ^ C ^ D) + E + W[i] + 0x6ED9EBA1) & 0x0ffffffff;

   288 			E = D;

   289 			D = C;

   290 			C = rotate_left(B,30);

   291 			B = A;

   292 			A = temp;

   293 		}

   294  

   295 		for( i=40; i<=59; i++ ) {

   296 			temp = (rotate_left(A,5) + ((B&C) | (B&D) | (C&D)) + E + W[i] + 0x8F1BBCDC) & 0x0ffffffff;

   297 			E = D;

   298 			D = C;

   299 			C = rotate_left(B,30);

   300 			B = A;

   301 			A = temp;

   302 		}

   303  

   304 		for( i=60; i<=79; i++ ) {

   305 			temp = (rotate_left(A,5) + (B ^ C ^ D) + E + W[i] + 0xCA62C1D6) & 0x0ffffffff;

   306 			E = D;

   307 			D = C;

   308 			C = rotate_left(B,30);

   309 			B = A;

   310 			A = temp;

   311 		}

   312  

   313 		H0 = (H0 + A) & 0x0ffffffff;

   314 		H1 = (H1 + B) & 0x0ffffffff;

   315 		H2 = (H2 + C) & 0x0ffffffff;

   316 		H3 = (H3 + D) & 0x0ffffffff;

   317 		H4 = (H4 + E) & 0x0ffffffff;

   318  

   319 	}

   320  

   321 	var temp = cvt_hex(H0) + cvt_hex(H1) + cvt_hex(H2) + cvt_hex(H3) + cvt_hex(H4);

   322  

   323 	return temp.toLowerCase();

   324  

   325 };