# Print - Basic Calculator 4 - JavaScriptBank.com

This is another script to make the basic calculator code on your web page.

CSS
`<style>  .fon{color:red}  .fon1{color:blue}  .fon2{color:green}  .fon3{color:brown} .fon3{color:maroon}</style><!--    This script downloaded from www.JavaScriptBank.com    Come to view and download over 2000+ free javascript at www.JavaScriptBank.com-->`

JavaScript
`<SCRIPT LANGUAGE="JavaScript">// johns221b.50megs.comvar txt="",flag1=1,flag=1,value=0,ans=0,oper="!",an=0,flag2=2function txtf(A){   txt=txt+A  document.form1.tex1.value=txt   if(flag1==0)flag=2an=eval(document.form1.tex1.value)}function operator(B) { if(flag==1)   {   value=eval(document.form1.tex1.value)   flag1=0;oper=B   txt=""    }  else    {     calculate()     oper=B     flag=1    an=eval(document.form1.tex1.value)           }  }function equ(){ if(flag2!=2){value=an} calculate() flag2=3} function calculate() {    if(oper=="+")ans=value+eval(document.form1.tex1.value)      else if(oper=="-")ans=value-eval(document.form1.tex1.value)      else if(oper=="*")ans=value*eval(document.form1.tex1.value)           else if(oper=="/")ans=value/eval(document.form1.tex1.value)        else if(oper=="!")ans=document.form1.tex1.value  document.form1.tex1.value=ans  value=eval(document.form1.tex1.value)  txt=""}function ac(){txt="";flag1=1;flag=1;value=0;ans=0;document.form1.tex1.value=0;oper="!",an=0,flag2=2}function sqrt1(){document.form1.tex1.value=(Math.sqrt(eval(document.form1.tex1.value)))}function sin1(){document.form1.tex1.value=(Math.sin(eval(document.form1.tex1.value)))}function cos1(){document.form1.tex1.value=(Math.cos(eval(document.form1.tex1.value)))}function tan1(){document.form1.tex1.value=(Math.tan(eval(document.form1.tex1.value)))}//--></SCRIPT><!--    This script downloaded from www.JavaScriptBank.com    Come to view and download over 2000+ free javascript at www.JavaScriptBank.com-->`

HTML
`<h2><font color="red"><center><blink><marquee direction="down" bgcolor="orange" height="25" width="300" scrollamount="2"><pre>  www.javascriptbank.com </pre></marquee><BR><font color="brown"><marquee direction="up" bgcolor="orange" height="25" width="300" scrollamount="2"><pre>  www.javascriptbank.com </pre></marquee></h2><FORM name="form1"><table border=2 bordercolor="red" width=174><tr><td><INPUT TYPE="text" NAME="tex1" size=22 maxlength=0></td></tr><table border=2 bordercolor="green"><tr><td width=38><INPUT TYPE="button" value="   1   " class="fon1" onClick="txtf(1)"></td><td width=10><INPUT TYPE="button" value="   2   " class="fon1" onClick="txtf(2)"></td><td width=10><INPUT TYPE="button" value="   3   " class="fon1" onClick="txtf(3)"></td><td width=10><INPUT TYPE="button" value="   +   "  class="fon2" onClick="operator('+')"></td></tr><tr><td width=10><INPUT TYPE="button" value="   4   " class="fon1" onClick="txtf(4)"></td><td width=10><INPUT TYPE="button" value="   5   " class="fon1" onClick="txtf(5)"></td><td width=10><INPUT TYPE="button" value="   6   " class="fon1" onClick="txtf(6)"></td><td width=10><INPUT TYPE="button" value="    -   " class="fon2" onClick="operator('-')"></td></tr><tr><td width=10><INPUT TYPE="button" value="   7   " class="fon1" onClick="txtf(7)"></td><td width=10><INPUT TYPE="button" value="   8   " class="fon1" onClick="txtf(8)"></td><td width=10><INPUT TYPE="button" value="   9   " class="fon1" onClick="txtf(9)"></td><td width=10><INPUT TYPE="button" value="    /   "  class="fon2" onClick="operator('/')"></td></tr><tr><td width=10><INPUT TYPE="button" value="   0   " class="fon1" onClick="txtf(0)"></td><td width=10><INPUT TYPE="button" value="   .    " class="fon1" onClick="txtf('.')"></td><td width=10><INPUT TYPE="button" value="   =   "   class="fon3" onClick="equ()"></td><td width=38><INPUT TYPE="button" value="   *   "  class="fon2" onClick="operator('*')"></td></tr><tr><td width=10><INPUT TYPE="button" value=" sqrt"  class="fon4" onClick="sqrt1()"></td><td width=10><INPUT TYPE="button" value=" sin "  class="fon4" onClick="sin1()"></td><td width=10><INPUT TYPE="button" value=" cos"  class="fon4" onClick="cos1()"></td><td width=10><INPUT TYPE="button" value=" tan "  class="fon4" onClick="tan1()"></td></tr><tr><td colspan=4><INPUT TYPE="button" value="                AC               " class="fon" onClick="ac()"></td></tr></table></table></FORM></font></blink></font><!--    This script downloaded from www.JavaScriptBank.com    Come to view and download over 2000+ free javascript at www.JavaScriptBank.com-->`