It sound like your browser doesn&#39;t have support for &lt;canvas&gt;<br>What&#39;s the version of Firefox? On which OS?<br><br>Could you check if you can run thi demo from the Mozzilla site?<br><br><a href="http://developer.mozilla.org/samples/raycaster/RayCaster.html">
http://developer.mozilla.org/samples/raycaster/RayCaster.html</a><br><br>&nbsp;-Pg<br><br><div><span class="gmail_quote">2007/2/9, Ionut Muntean &lt;<a href="mailto:ionut@muntean.ro">ionut@muntean.ro</a>&gt;:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hi,<br><br>I&#39;m using kXmlOverlay to render some graphics (lines and points). The<br>line and point data are loaded with MyXmlOverlay.loadXml();.<br>Everything is workink fine on IE6 but Firefox complains about 2<br>functions in kaXmlOverlay. The first function is
<br>_BrowserIdent_getCanvasContext(); and the second function is<br>_BrowserIdent_setCanvasHW;.<br><br>Is the linestring definition too big?<br><br>Any help would be apreciated.<br><br>Thank you,<br>Ionut Muntean<br><br>The errors are:
<br><br>[Exception... &quot;Component returned failure code: 0x80004005<br>(NS_ERROR_FAILURE) [nsIDOMHTMLCanvasElement.getContext]&quot;&nbsp;&nbsp;nsresult:<br>&quot;0x80004005 (NS_ERROR_FAILURE)&quot;&nbsp;&nbsp;location: &quot;JS frame ::
<br><a href="http://eos/XMLOverlay/kaXmlOverlay.js">http://eos/XMLOverlay/kaXmlOverlay.js</a> :: _BrowserIdent_getCanvasContext<br>:: line 1550&quot;&nbsp;&nbsp;data: no]<br><a href="http://eos/XMLOverlay/kaXmlOverlay.js">http://eos/XMLOverlay/kaXmlOverlay.js
</a><br>Line 1550<br><br>The xml file loaded with loadXml:<br><br>&lt;overlay&gt;<br>&nbsp;&nbsp;&nbsp;&nbsp; &lt;point x=&quot;391644.9327450697&quot; y=&quot;5056212.401141137&quot; id=&quot;p1&quot;&gt;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;label&gt;Auto 1&lt;/label&gt;
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;symbol shape=&quot;bullet&quot; size=&quot;15&quot; opacity=&quot;0.75&quot; color=&quot;#ff0000&quot; /&gt;<br>&nbsp;&nbsp;&nbsp;&nbsp; &lt;/point&gt;<br>&nbsp;&nbsp;&nbsp;&nbsp; &lt;point x=&quot;391551.026882342&quot; y=&quot;5065220.709017283
&quot; id=&quot;l1&quot;&gt;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;linestring color=&quot;#ff0000&quot; stroke=&quot;3&quot; opacity=&quot;0.8&quot;&gt;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 391551.026882342 5065220.709017283,391515.033771990<br>5065160.761219484
,391497.000110514 5065094.734658999,391473.021195302<br>5065040.695658481,391461.023491851 5064986.666655928,391431.000372769<br>5064938.626434376,391418.953194253 5064890.606208753,391406.906015737<br>5064824.579648267,391382.894117147
 5064764.541868784,391370.855184475<br>5064734.517980059,391352.846260532 5064710.612845880,391334.829090746<br>5064668.581401259,391316.844904336 5064632.548735603,391316.836658492<br>5064596.546063842,391286.813539410 5064566.512177153
,391268.755140402<br>5064530.479511498,391244.743241812 5064488.448066876,391226.750809558<br>5064434.419064322,391214.736614419 5064392.397617666,391190.699978296<br>5064344.357396115,391142.610214362 5064296.417154212,391034.507195642
<br>5064248.296948940,390860.280751512 5064176.441574893,390752.194224481<br>5064116.433789304,390680.100807801 5064080.361131788,390595.993195982<br>5064038.379676991,390529.943983171 5063996.308240511,390481.845973393<br>
5063948.258020993,390421.816226918 5063894.299004194,390355.684555664<br>5063852.347543293,390259.587486239 5063810.366088496,390181.573553355<br>5063792.289767878,390097.457695692 5063750.318311047,389977.323990144<br>5063696.319302388
,389899.211107128 5063690.360515282,389827.167165514<br>5063600.398826723,389761.019002572 5063540.331053344,389694.953298072<br>5063480.373257579,389574.737134081 5063378.374019229,389478.631818812<br>5063306.398669602,389358.423900665
 5063192.501852969,389256.307364904<br>5063084.513833617,389124.002793175 5062982.624572881,389063.923571634<br>5062922.686773046,389009.756620454 5062862.748973211,389003.770137495<br>5062784.724854794,389003.704170741 5062706.710734342
,389003.745399962<br>5062634.575417276,389021.787307282 5062550.572515823,389027.757298552<br>5062448.443303928,389003.893825160 5062328.397738854,388961.765806652<br>5062232.347289645,388883.652923636 5062148.394378017,388811.699686309
<br>5062004.193729640,388769.687109621 5061884.138166602,388685.587743646<br>5061709.943623396,388619.653972656 5061589.758086814,388487.547301190<br>5061361.514545124,388427.525800560 5061193.438756463,388373.589733020<br>
5060995.249097394,388331.560664643 5060827.073329084,388289.548087955<br>5060694.910230499,388187.390322972 5060622.944878837,387995.311625942<br>5060574.824673566,387809.169936805 5060484.822993146,387689.102198011<br>5060430.753998733
,387617.000535487 5060388.822533762,387532.934152889<br>5060322.765979381,387466.983890210 5060250.710646036,387424.847625858<br>5060220.686757311,387406.879931137 5060148.661417861,387382.843295014<br>5060094.532435657,387364.834371072
 5060046.512210035,387340.805980793<br>5059992.493205447,387310.791107556 5059926.466644961,387268.786776712<br>5059878.436421375,387190.706877074 5059842.393757754,387148.719037918<br>5059812.369869029,387094.634545181 5059776.337203374
,387016.546399698<br>5059710.290646959,386944.510703929 5059668.259202338,386860.518533930<br>5059590.315067641,386776.386184578 5059530.277288156,386740.335353316<br>5059488.365819114,386686.209631357 5059446.444352107,386638.235309243
<br>5059404.532883065,386578.189071080 5059362.501438444,386500.051450531<br>5059272.569743779,386445.999941171 5059290.666060327,386397.934914770<br>5059260.762147181,386355.905846393 5059194.845564310,386301.837845345<br>
5059134.927760405,386241.676165361 5059087.017512398,386157.601536920<br>5059039.207244040,386025.428898699 5059003.384535647,385941.387253635<br>5059021.480852195,385869.368049554 5059015.462077299,385803.351820120<br>5058967.441851676
,385695.323013999 5058973.420634713,385617.300835270<br>5058967.291882202,385551.309343369 5058967.171906623,385497.315554919<br>5058967.051931044,385473.278918797 5059003.054602805,385395.355690200<br>5058972.810758851,385353.310130135
 5058918.791754263,385221.294162956<br>5058870.541575447,385167.292128662 5058840.417707073,385077.313475704<br>5058756.274834110,385005.277779934 5058720.152186771,384981.274127189<br>5058648.136845284,384963.215728181 5058593.897885467
,384933.209100788<br>5058563.893992673,384909.213693886 5058521.872546016,384885.177057764<br>5058485.869874256,384843.197464453 5058461.744784848,384807.237337478<br>5058425.732115122,384789.121217560 5058389.729443361,384759.205294454
<br>5058347.717994670,384717.192717766 5058317.594126296,384603.111461931<br>5058245.468807195,384519.086308555 5058227.462472333,384447.157808761<br>5058239.350052650,384363.083180320 5058239.350052650,384249.043153706<br>
5058233.241296070,384176.999212092 5058197.018669081,384098.919312454<br>5058155.007220389,384032.977295619 5058094.999434800,383972.980532521<br>5058040.880450562,383918.879548095 5057980.872664973,383930.951464145<br>5057896.849767590
,383996.926464357 5057836.722006422,384026.933091750<br>5057782.703001833,384020.880642037 5057716.686439313,383984.953498439<br>5057674.684988586,383936.921455415 5057656.678653724,383882.894683588<br>5057638.572339212,383804.839521482
 5057602.569667450,383714.770164237<br>5057590.582107483,383636.772723042 5057566.357038426,383630.728519173<br>5057530.354366666,383594.718917132 5057488.342917974,383528.669704321<br>5057440.342688282,383462.735933331 5057398.231259941
,383414.670906930<br>5057320.107161874,383306.633854964 5057302.120822941,383228.578692858<br>5057254.020613600,383210.578014760 5057200.011606976,383180.604370744<br>5057055.870946390,383162.554217580 5057019.858276664,383132.531098498
<br>5056989.864381834,383126.569353072 5056941.854154177,383120.558132581<br>5056899.842705485,383090.551505188 5056845.833698862,383024.527029910<br>5056803.622290871,383018.532301107 5056737.605728352,383018.507563574<br>
5056665.580388900,383018.474580197 5056605.572603311,382988.500936181<br>5056503.553369030,382976.503232730 5056449.434384792,382910.421036542<br>5056371.320284691,382844.413052953 5056293.316162203,382784.358568945<br>5056179.189392377
,382754.335449864 5056095.176492958,382724.361805848<br>5056035.168707370,382676.346254512 5055981.169698711,382640.336652472<br>5055914.943178927,382622.327728529 5055860.934172303,382574.303931350<br>5055806.935163645,382556.295007407
 5055752.926157022,382550.283786915<br>5055710.804730716,382520.252421990 5055680.810835887,382490.188073686<br>5055632.810606194,382484.267557482 5055578.791601606,382454.170225802<br>5055524.792592947,382412.149403269 5055470.683606674
,382388.170488057<br>5055410.565843470,382370.252268401 5055332.551723018,382370.219285024<br>5055260.526383568,382364.158589467 5055170.514705184,382340.105461655<br>5055110.396941979,382316.101808910 5055044.390377425,382262.116266304
<br>5054972.385033904,382250.184529608 5054918.376027280,382178.124096305<br>5054756.139050147,382148.092731379 5054714.137599420,382094.090697085<br>5054666.037390077,382094.049467864 5054606.019606523,382082.084747790<br>
5054546.011820934,382028.016746741 5054474.016475378,381962.017008996<br>5054401.911152207,381907.965499636 5054371.927255343,381866.002398014<br>5054329.925804616,381829.959812596 5054287.934351854,381775.883565703<br>5054227.826586615
,381787.938990064 5054143.803689233,381823.932100416<br>5054059.770793885,381847.985228227 5053987.625478854,381877.967118088<br>5053915.600139404,381889.973067382 5053849.573578918,381859.941702457<br>5053795.464592645,381811.942642810
 5053735.466805021,381673.882471762<br>5053675.399031642,381613.869216976 5053615.411241982,381541.800537829<br>5053561.432229254,381493.793232338 5053513.332019912,381451.714688896<br>5053453.334232287,381427.744019527 5053357.323774938
,381409.718603896<br>5053291.207232769,381343.661145241 5053225.220664143,381301.706289463<br>5053159.224097553,381283.639644611 5053087.098778452,381283.639644611<br>5053021.082215932,381235.615847431 5052985.099540101,381175.619084334
<br>5052943.118085304,381103.550405187 5052889.029094961,381067.540803146<br>5052841.038863234,381031.522955261 5052805.046189439,380983.466174705<br>5052750.947201131,380923.469411607 5052708.965746334,380911.446970624<br>
5052630.731670653,380875.445614427 5052570.743880994,380893.479275903<br>5052522.713657406,380839.386537321 5052438.730751883,380827.397079715<br>5052378.602990715,380791.428706896 5052324.613980021,380755.336646412<br>5052276.623748293
,380755.402613166 5052210.607185774,380731.357731199<br>5052156.498199500,380707.312849232 5052114.496748774,380653.310814938<br>5052084.522849875,380617.284721209 5052060.537731975,380593.322297685<br>5052006.428745703,380587.278093816
 5051910.408290388,380581.299856701<br>5051838.392948901,380581.283365013 5051772.376386382,380521.270110227<br>5051742.292509867,380467.185617489 5051712.318610967,380449.193185235<br>5051652.310825378,380431.184261293 5051604.200618071
,380401.210617277<br>5051550.201609413,380293.148827778 5051508.150168861,380227.083123279<br>5051496.192602789,380173.072843141 5051466.218703889,380125.024308428<br>5051442.133606342,380047.018621388 5051454.191152063,380046.993883855
<br>5051388.174589543,380022.949001888 5051322.058047373,379998.986578364<br>5051244.053924886,379956.924526610 5051141.944708921,379926.917899217<br>5051057.951805432,379914.961424988 5050991.935242913,379890.883559644<br>
5050895.824805913,379872.924110767 5050817.810685460,379884.905322529<br>5050661.762448627,379896.944255201 5050577.739551244,379878.902347882<br>5050487.617895246,379860.868686406 5050397.606216862,379860.901669784<br>5050289.578205650
,379860.909915628 5050115.423654304,379860.876932251<br>5049971.382973366,379860.909915628 5049839.349848326,379854.898695136<br>5049725.213080534,379842.892745841 5049689.210408773,379848.870982956<br>5049647.198960082,379866.912890275
 5049587.171178563,379842.826779087<br>5049515.175833006,379842.785549865 5049371.025174455,379854.824482537<br>5049298.999835004,379854.890449292 5049220.975716587,379902.906000627<br>5049136.922825309,379914.870720701 5049064.897485858
,379920.931416258<br>5048998.770945723,379938.833144225 5048902.730494479,379938.973323578<br>5048824.706376062,379920.848957815 5048770.597389789,379908.933712808<br>5048686.584490371,379890.933034709 5048590.574033021,379848.813262046
<br>5048518.478707816,379800.764727333 5048434.595781942,379734.756743744<br>5048350.512896769,379692.711183679 5048278.527549177,379680.738217761<br>5048110.381774763,379686.732946564 5048020.350100448,379692.768904589<br>
5047936.327203065,379704.733624662 5047852.294307717,379698.705912482<br>5047762.062674105,379716.756065646 5047690.027336689,379734.764989588<br>5047624.000776203,379752.773913530 5047569.971773651,379752.757421842<br>5047515.962767027
,379752.732684309 5047461.943762438,379740.759718391<br>5047419.942311713,379728.720785719 5047365.943303054,379758.752150645<br>5047287.899188707,379758.809871555 5047245.887740015,379740.743226703<br>5047215.783867572,379728.729031563
 5047191.788751707,379722.767286137<br>5047161.774860948,379794.819473596 5047149.837290806,379824.834346833<br>5047143.818515910,379860.794473808 5047101.777073324,379818.781897120<br>5047035.680527084,379818.798388808 5046987.670299427
,379848.780278668<br>5046963.645189668,379920.840711971 5046951.707619525,379968.872754995<br>5046879.652286179,380004.882357036 5046795.609392866,380046.944408789<br>5046741.570392349,380082.954010830 5046681.532612865,380196.977545755
<br>5046663.566269862,380239.031351664 5046633.532383172,380257.032029762<br>5046615.516050344,380275.040953705 5046573.494603688,380269.046224901<br>5046525.484376030,380251.020809270 5046501.489260167,380251.037300959<br>
5046465.376610791,380311.083539122 5046441.441482718,380437.129515030<br>5046435.362720032,380563.282686915 5046447.410267789,380635.334874373<br>5046447.250300350,380713.348807257 5046411.317614344,380731.250535224<br>5046351.289832825
,380761.372604437 5046297.260830271,380767.334349863<br>5046249.250602614,380701.342857962 5046207.159170203,380647.258365225<br>5046159.178936441,380767.301366486 5046141.112613788,380923.386953164<br>5046105.129937957,381025.495243081
 5046051.070941509,381139.568253072<br>5046039.123373401,381187.625033629 5046045.102156438,381223.642881513<br>5045997.071932850,381265.630720668 5045955.040488229,381289.650865103<br>5045937.034153366,381325.643975455 5045925.006601539
,381367.730764741<br>5045924.986605610,381391.701434110 5045924.986605610,381427.719281994<br>5045943.082922157,381415.713332699 5045985.094370849,381421.708061503<br>5046021.107040574,381481.746053822 5046009.079488748,381505.733214879
<br>5045919.047814433,381529.786342690 5045841.013698052,381565.804190575<br>5045871.007592881,381607.849750640 5045918.887846994,381655.857056131<br>5045942.882962858,381757.866395917 5045936.954169647,381805.947914006<br>
5045894.922725026,381847.935753162 5045852.901278369,381877.975363932<br>5045834.884945542,381919.996186464 5045864.878840371,381992.097848988<br>5045870.847625442,382088.186672569 5045840.813738753,382142.205198552<br>5045798.892271746
,382214.240894322 5045792.873496850,382256.171012567<br>5045780.855942988,382268.135732640 5045702.841822536,382304.170072214<br>5045696.823047640,382322.286192132 5045696.823047640,382346.314582410<br>5045666.809156881,382370.277005934
 5045624.787710224,382418.350278180<br>5045606.661399782,382424.320269450 5045558.761149739,382454.376371909<br>5045504.632167537,382472.368804163 5045456.501964300,382579.564780010<br>5045426.708028769,382641.548791583 5045350.863466709
,382717.369329885<br>5045330.217669101,382834.410843822 5045330.247662997,382923.952467032<br>5045316.460469340<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;/linestring&gt;<br>&nbsp;&nbsp;&nbsp;&nbsp; &lt;/point&gt;<br>&lt;/overlay&gt;<br><br>_______________________________________________
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</a><br></blockquote></div><br>