jquery limits the text box to only input numbers, that is, integers and decimals_jquery

$(function(){
//The text box can only Enter numbers (excluding decimals), and block input methods and paste
$.fn.integer= function() {
$(this).css("ime-mode", "disabled");
this.bind("keypress",function(e) {
var code = (e.keyCode ? e.keyCode : e.which); //Compatible with Firefox IE
if(!$.browser.msie&& (e.keyCode==0x8)){ //The backspace key cannot be used under Firefox
return ;
}
return code >= 48 && code<= 57;
});
this.bind("paste", function() {
return false;
});
this.bind("keyup", function() {
if (/(^0 )/.test(this.value)) {
this.value = this.value.replace(/^0*/, '');
}
});
};

//The text box can only enter numbers (including decimals), and blocks the input method and paste
$.fn.number= function() {
$(this).css("ime- mode", "disabled");
this.bind("keypress",function(e) {
var code = (e.keyCode ? e.keyCode : e.which); //Compatible with Firefox IE
if(!$.browser.msie&&(e.keyCode==0x8)){ //The backspace key cannot be used under Firefox
return ;
}
if(this.value.indexOf(" .")==-1){
return (code >= 48 && code<= 57)||(code==46);
}else{
return code >= 48 && code<= 57
}
});
this.bind("paste", function() {
return false;
});
this.bind("keyup ", function() {
if(this.value.slice(0,1) == "."){
this.value = "";
}
});
this.bind("blur",function(){
if(this.value.slice(-1) == "."){
this.value = this.value.slice(0,this .value.length-1);
}
});
};
});