Changing background image with a button

I am trying to make a button that would change the background image of the whole document whenever somebody clicks it.

I have tried something along the lines of this:

Quote:

<input type="button"
value="Pattern1"
onClick="background-image: url(background.png);background-repeat: no-repeat;">

and,

Quote:

<input type="button"
value="Pattern2"
onClick="background: url(background.png);background-repeat: no-repeat;">

as you can see, I am a beginner at coding in general so any help is appreciated.

My assumption to why it doesn't work is that I am combining javascript with CSS, but I am most likely wrong. :(

Yea, I think you want something like

Code:

<input type="button" value="Pattern1" onClick="document.body.style.backgroundImage = 'url(background.png) no-repeat;'">

How's this? (It was on here)
Insert this in the <HEAD>:

Code:

<meta name="Author" content="Ronald H. Jankowsky"> <meta name="Description" content="Slider-Script"> <style>.drag {position: relative; cursor: hand}</style> <SCRIPT LANGUAGE="JavaScript1.2"> // Slider script by Ronald H. Jankowsky (http://rj-edv-beratung.de), parts of code (draglayer, movelayer) by DynamicDrive.com // This script is free for use, please leave this notice intact var sPosition; var showPerc=100; document.onmousedown=dragLayer document.onmouseup=new Function("dragMe=false") var Color= new Array(); Color[0] = "00"; Color[1] = "11"; Color[2] = "22"; Color[3] = "33"; Color[4] = "44"; Color[5] = "55"; Color[6] = "66"; Color[7] = "77"; Color[8] = "88"; Color[9] = "99"; Color[10] = "AA"; Color[11] = "BB"; Color[12] = "CC"; Color[13] = "DD"; Color[14] = "EE"; Color[15] = "FF"; // Demofunction to change bg-color by moving slider var rVal,gVal,bVal, cCol function chgBg() { cCol = document.bgColor; rVal=cCol.substr(1,2); gVal=cCol.substr(3,2); bVal=cCol.substr(5,2); ind = Math.round(showPerc/16); if (ind < 0) ind = 0; if (ind > 15) ind=15; // If more sliders are used, each of them has to be handled separately if (kObj.id =="knobImg") document.bgColor="#"+Color[ind]+gVal+bVal; if (kObj.id =="knobImg1") document.bgColor="#"+rVal+Color[ind]+bVal; if (kObj.id =="knobImg2") document.bgColor="#"+rVal+gVal+Color[ind]; } // Drag and move engine (original code by DynamicDrive.com), don't change unless explicitely indicated var dragMe=false, kObj, yPos,direction function moveLayer() { if (event.button==1 && dragMe) { oldY = kObj.style.pixelTop; kObj.style.pixelTop=temp2+event.clientY-yPos; // Limit movement of knob to stay inside layer if (kObj.style.pixelTop > oldY) direction="dn"; else direction="up"; if (kObj.style.pixelTop < 2 && direction=="up") {kObj.style.pixelTop=2; direction="dn";} if (kObj.style.pixelTop > 102 && direction=="dn") {kObj.style.pixelTop=102; direction="up";} // Set working variable 'showPerc' depending on 100 or 250 scaling sPosition=kObj.style.pixelTop; showPerc = (perCent[0].checked) ? sPosition-2 : (sPosition-2)/2*5; // The following line should be replaced by the function-call with the actual task to perform chgBg(); return false; } } function dragLayer() { if (!document.all) return; if (event.srcElement.className=="drag") {dragMe=true; kObj=event.srcElement; temp2=kObj.style.pixelTop; yPos=event.clientY; document.onmousemove=moveLayer; } } </script>

And this into the <BODY>:

Code:

<body bgcolor="#FFFFFF">  <div id="outerLyr" style="position:absolute; width:23px; height:120px; z-index:1; left: 155px; top: 111px; background-color: #000000"> <img id="knobImg" src="knob.jpg" class="drag" style="width: 20px; height: 17px; z-index:3; left: 2px; top: 100px"> <div id="innerLyr" style="position:absolute; width:20px; height:117px; z-index:2; background-color: #777777; left: 2px; top: 2px"> <div id="barLyr" style="position:absolute; width:2px; height:110px; z-index:1; background-color: #000000; left: 9px; top: 5px"></div> </div> </div> <div id="outerLyr1" style="position:absolute; width:23px; height:120px; z-index:1; left: 185px; top: 111px; background-color: #000000"> <img id="knobImg1" src="knob.jpg" class="drag" style="width: 20px; height: 17px; z-index:3; left: 2px; top: 100px"> <div id="innerLyr1" style="position:absolute; width:20px; height:117px; z-index:2; background-color: #777777; left: 2px; top: 2px"> <div id="barLyr1" style="position:absolute; width:2px; height:110px; z-index:1; background-color: #000000; left: 9px; top: 5px"></div> </div> </div> <div id="outerLyr2" style="position:absolute; width:23px; height:120px; z-index:1; left: 215px; top: 111px; background-color: #000000"> <img id="knobImg2" src="knob.jpg" class="drag" style="width: 20px; height: 17px; z-index:3; left: 2px; top: 100px"> <div id="innerLyr2" style="position:absolute; width:20px; height:117px; z-index:2; background-color: #777777; left: 2px; top: 2px"> <div id="barLyr2" style="position:absolute; width:2px; height:110px; z-index:1; background-color: #000000; left: 9px; top: 5px"></div> </div>  </div> <input type="radio" name="perCent" value="false">Prozent <input type="radio" name="perCent" value="true" checked>255

Had to 'steal' the source code, code wasn't available.

Thank you both, I thanked both your posts. :)